Since we have already seen a wide increase when it comes to Bitcoin usages for different purposes that has been done and happened from the years 2009 up to 2017, I think we must be expecting that this 2018, a continuous improvement or innovation and much larger range for the individuals must be expected as a part of the total improvement to happen within the Bitcoin community especially people are expecting that the price would grow up much larger to attract many people that can lead to the worldwide legalization of it.

Bitcoin cannot easily replace Gold. Gold is the most precious metal and used by our ancestors  long time ago. Gold can last for hundreds of years while bitcoin future is uncertain. We don't even know if bitcoin can still exist for hundreds of years. Also Gold is accepted globally and bitcoin is not. It's the secret of rich countries like US. They don't save money but they buy gold to preserve. Gold can influence the economy of a country. Gold value accumulates value over time. It's value doesn't drop. It can save a country because money are not safe from devaluation. So gold can save an economy.

Gold is a historical store of value. It's known and recognized around the world. That's why Gold cannot be easily replace by bitcoin

Wait for bitcoin to go up.
This already happened before.
Its just temporary deep. See, now its price is recovering.
If you just dont lose trust on it and invested some when its price goes down, maybe you gain enough money.
And now its price is recovering, i have to invest, which i already did. I suggest you should too, before its price become much higher.
There is no other cryptocurrency who achieve this much..

bitcoin will go far beyond expectation, many people are still coming and wanting to have bitcoin though the supplies are not getting bigger, this will lead to having a shortage and supply and demand will lead this coin to go up and up and up as always. the government will put taxes on bitcoin as people are much more focus on it than getting a job.

Bitcoin does not provide income. You may profit from your speculation, but it is not income.

Furthermore, gains are not guaranteed or even consistent. For example, people that bought in December at $19k are going to have to wait a long time just to break even.