I completely disagree with your statement. Yes Bitcoin is the king for now but that king will be dethroned soon. Yes I will admit the fact that Bitcoin is the father of Cryptocurrencies it proved that the system works but that doesn't mean it is the future Currency especially with the issues Bitcoin is facing at the moment: the Mining difficulty, scalability issues and transaction speed. And with Energy consumption that mining is sucking up it has countires banning Bitcoin mining(South Korea) and got people questioning if mining is still worth it. Now with Ethereum on the other hand I will like to look at Ethereum as the Prince who has got his eye on the throne. When the Flippenning occurs, we will see a massive surge in the Crypto markets and this will favour Ethereum it will finally step away from Bitcoin's shadow because Ethereum Blockchain is the way of the Future: the Ethereum blockchain focuses on running the programming code of any decentralized application. Introducing Future contracts into the Blockchain Technology and Decentralized Applications have the potential to profoundly disrupt hundreds industries such as Finance, Real Estate and Insurance.    

Bitcoin has to improve alot things for the betterment of the Cryptocurrency. Bitcoin has to improve their scalability issues, Speed transactions if they want it to be a future "global currency", cut down the cost for transaction fees and Introduce new technology into their Blockchain technology such as Future Contracts, gaming, token bridge and they will have to swift from PoW especially with the mining diffculty increasing so much.

Yes and No, For a long term investment I don't I think so but for a short term long yes it is a must have because it's popular in the Cryptocurrency market.
When it comes to 'should you buy or just mine it' yourself part. I suggest that you buy the dip because of the mining diffculty Bitcoin is facing right now
and as well with the energy consumption diliemma. I don't think it's worth and a lot of people are starting to question the profitability of Bitcoin mining.

https://cointelegraph.com/news/one-of-europes-most-energy-efficient-data-centers-tests-btc-eth-mining

There is a new consensus protocol that is Eco-friendly called Proof of Ambassador introducted by Bitcoin Origin. Bitcoin Origin's Proof of Ambaasador consensus is based on pre-approved Authoritative validators with a Proof of Authority approach. Ambassadors are voted for monthly by the Bitcoin Origin coin holders. By staking Bitcoin Origin tokens the community is given the power to vote for the Ambassador who has represented Bitcoin Origin in the effective manner. Bitcoin Origin is a self- funded project it's not an ICO or an Altcoin yet it is an upcoming hard fork of the 5 biggest PoW Cryptocurrencies Bitcoin, Bitcoin Cash, Ethereum, Litecoin and Dash. Bitcoin Origin has Eco- Friendly approach to mining using severs that Eco- friendly farms.

Hyman Minsky he believes that Bitcoin is has five stages: displacement, boom, euphoria, profit taking and panic.
Policy adviser at the Federal Reserve Bank of San Francisco, Joost van der Burgt, says that if Bitcoin is in fact a bubble, it’s likely at the beginning of the ‘profit-taking’ stage, meaning that ‘panic’ is not here yet. But he does admit that he might be wrong about Bitcoin being a bubble and states that it could become "a new global currency".
https://www.newsbtc.com/2018/06/03/according-to-economist-joost-van-der-burgt-if-bitcoin-is-a-bubble-the-final-stage-of-panic-is-on-the-horizon/

I prefer to watch Bitcoin Documentaries than movies because they try hype the movies so they can make ticket sells.(Banking on Bitcoin)
Here are some Bitcoin Documentaries I have watched

1.The rise and Rise of Bitcoin.
“The Rise and Rise of Bitcoin” is a film that documents the journey of the bitcoin. It covers all the events of bitcoin that have made headlines.
2.The Bitcoin Story
This was the very first documentary I watched. It is a depiction of all the conversations around the founding of bitcoin. The conversations delve into the core technologies around it, the politics surrounding it, and the ability of bitcoin to transform the financial sector. It also features the opinions of venture capitalists.
3.The History of Bitcoin
This is a time-based description of the history of the revolutionary software. It shows the use and revolution of the currency from its inception to the present day.
4. The Bitcoin Gospel
This is documentary I would recomemend for someone who is a beginner in the Crypto world.This Dutch film starts with a bitcoin angel investor known as Rodger Ver. He explains how the currency works. The movie basically follows the life of Rodger Ver, who has dedicated his life to advocating for the use of bitcoin. It also gives insight into the world of mining for bitcoins in China.

ICOs fail because of these primary reasons such:
Inadequate Product Market
About 60% of ICO fail at the initial stage because their services or products does not have any value and demand in the market. Most of the ICOs today requires selling token to raise the capital. For such ICOs it is important that their ICOs have caught up the SEC and related regular bodies soon to protect themselves from long-term failure. it is very important the people who are launching the ICOs should have a defined market which is completely aware of the project, it is also imperative to build trust and reputation to make your ICO successful.
Failure to create the brand identity
People are not brand conscious. They invest in a project which sounds good forgetting it should look good too. This includes every element of websites like content, logo, visuals, fonts, ICO white paper, and selection of colors etc. The people will question your brand if they find your website unprofessional.
Unrealistic Objectives and Budgets
The unrealistic budgets and objectives of the new business always put the business in difficulties. The higher you set your objectives, the more budget you will need to achieve those objectives and so is the need to spend on the marketing, PR, development, design, and content.
Lack of audit, reporting, and measurement
Majority of ICO which has failed was launched by newcomers who have very limited knowledge of the online marketing techniques and do not understand the need for continuous auditing, measurement and reporting to improve their ICOs. Bear in mind that an ICO is like a product or serivce which cannot survive without you doing the marketing in a RIGHT WAY.

The best trading Crypto Exchange I would suggest:
1. Binance – The best overall platform (Currently Open!)
2.Bittrex – Secure but expensive (Currently closed)
3.BitMex
4.BitFinex
5.Coinbase
6.Poloniex
7.Kraken
8.Bitfair - (It hasn't open yet but I would recomemend for you to keep an eye on it)

Regarding you can making a good profit per month that's on you and how you place your trades.

Hey Crypto Nation
I am not sure if you guys have heard about an upcoming fork that will be occuring very soon..
The Bitcoin Origin the World's first penta-fork of the top 5 Proof-of-Work cryptocurrencies. Those five currecies would The big boy himself Bitcoin, last years hard fork Bitcoin Cash, The prince of Crypto Ethereum, Bitcoin's poor cousin Litecoin and Lastly Dash.
Bitcoin Origin will announcing a new Consensus protocol Proof of Ambassador. What is Proof of Ambassador? A hybrid consensus approach to Proof of Authority and Proof of Stake.
For more about this project click the link below
https://www.prnewswire.com/news-releases/announcing-bitcoin-origin-an-innovative-new-approach-to-blockchain-technology-300642320.html 
Bitcoin Origin website https://www.bitcoinorigin.io/

Yes ICOs are very profittability but alot of people fear to invest into ICO's because ICOs are categorized into six different groups, namely, Scam, Failed, Gone Dead, Dwindling, Promising, and Successful and a small percentage of ICOs are considered successful so when investing into an ICOs make sure to do your research to be safe.

Perhaps at the moment I would say yes.
But yesterday I read up an article about upcoming fork and their technology sounded pretty exciting and that's
what really caught my attention about this article. Their innovative intitatives was talking about Multichains, Multi state engine and
Blockchain-as-a-service.

https://www.prnewswire.com/news-releases/announcing-bitcoin-origin-an-innovative-new-approach-to-blockchain-technology-300642320.html
 

Yes I believe that we do need Blockchain Technology.
Blockchain technology offers new tools for authentication and authorization in the digital world that preclude the need for many centralized administrators. As a result, it enables the creation of new digital relationships.
By formalizing and securing new digital relationships, the blockchain revolution is posed to create the backbone of a layer of the internet for transactions and interactions of value.
Here are some potential useage of Blockchain Technology
1. Digital asset and stock- Cryptocurrencies. Assets, stocks, and other digital tokens on the blockchain are perhaps some of the more powerful and exciting use-cases for blockchain technology.
2. Smart Contract- Enable trustless financial services like loans, automatic execution of trade agreements
3. Record Keeeping- Projects like Tierion use the Bitcoin blockchain to create “blockchain receipts
4. Identity- Onename is a New York based startup that has created an ID system using the Bitcoin blockchain
 Its first service allows users to create blockchain IDs, which will soon be used to login to websites without the need for a password.
5. Cloud Storage- Users with extra disk space will automatically be able to rent out unused storage space.

At the moment yes Altcoins are depending on Bitcoin but soon that will change when the Flippenning occurs,  Altcoins will start to get valued independenlty of Bitcoin and we will begin to see the biggest explosion of the Cryptocurrency market.  

ICO's I have on my watchlist are:
Ubcoin Market ICO
The next leap forward for Ubank, leading mobile payments app in Eastern Europe. Now with Ethereum blockchain, exchange-traded UBC cryptocurrency, and peer-to-peer smart contracts for buying and selling goods for cryptocurrency. Ubcoin Market will become part of Ubank app as a new feature.
Our Hard Cap: 29000 ETH.
Smart Advertising Transaction Token ICO (SaTT)
SaTT tokens will be used to govern advertising transactions between advertisers and publishers. SaTT will make transactions faster, safer and less expensive with our Smart Contract SaTT working on the Ethereum network.
The aim of the project is to decentralize the process of advertising transactions, allowing the definition of trusted third parties and oracle modules that will feed the Smart Contract.
Bitcoin Origin
I know this isn't an ICO it's an upcoming fork that caught my attention especially their innovative intitiative.They will be introducting a new Consensus protocol called Proof of Ambassador(PoA), Multi-state engine, Multichain and Blockchain-as-a-Service.PoA is an hybrid consensus approach to Proof of Authority and Proof of Stake. Multi-state engine does not facilitate a single state/ Blockchain pair, but instead of allows for multiple state/Blockchain pairs.


For info about upcoming ICOs checkout the link below
https://www.listico.io/

The reason why you should look at the community of an ICO becuase It is crucial to have a wide open supporting community like a public Slack for all investors.
Openness is as crucial in gaining our trust as the Github code. Look at the size of the community and its activity.Try to grasp the atmosphere within the community.

I would say the best Altcoins to invest in right now would be:
Ethereum
Litcoin
Bitcoin Cash
ECO
Cardano
Tron

This is just my two cent.

Yes I believe so; Tron will become popular this year amongst the Crypto community.
The reason I believe so is because it's cheap under $1 with tremendous potential growth,
They are set to introduce gaming into their Blockchain which is a win for cryptocurrency community interested in monetizing the gaming industry and everything that comes with it.
Not to mention Tron has a good community supporting the project and talk of big partnerships in the pipeline so we should expect bigger things from them.

After reading the Bitcoin Flippening. I can confidently say yes!
I am sure that ethereum will pass Bitcoin when the Bitcoin flippenning occurs Altcoins will be
valued independently. This could mark the beginning of biggest explosion of cryptocurrency market.
It's safe to say Ethereum is leading the altcoins race.

As a Bitcoin newbie myself I recommend for you to do some research on different types of Bitcoin wallets such as:

Cold wallets & hot wallets
All wallets are classified as either hot or cold. One that is connected to the internet or
is online is said to be "hot". On the other hand cold implies it is offline/disconnected.
Deskop wallets
Designed to be downloaded and used on laptops and personal computers.
Mobile wallets
Using phones for most tasks days and bitcoin wallets tailored for your smartphone is therefore very convenient.

At this point in time yes banking is still important but in the near future I don't think so because by then more individuals will be more educated about cryptocurrencies and utilized them for their daily use. Hopefully by then, the corporates and regulators would've jumped into cryptocurrency bandwagon.
I know it's wishful thinking but we will never know could be a possiblitiy