One reason why bitcoin keeps preeminent?

[salad daging]

There are many factors why bitcoin has always been superior to other cryptocurrencies including its large enough adoption in several institutions and also several countries where it has been legalized, including bitcoin has a strong fund and a large community so that the volume on the market every day is quite large, many people have believe how saving money in bitcoin will be safe if they have a private key over their control.

Bitcoin has a lot of interest so that this makes it superior including in blockchain technology and they also make decentralization which is widely used, it is more appropriate for us to believe in bitcoin even though other coins continue to innovate in new developments but only our trust in bitcoin is higher.

[DanWalker]

We all know that there are thousands of cryptocurrencies across the world such as Bitcoin, Litecoin, Etherium, Dogecoin etc. Among all of these bitcoin is always remains on top. I think one of the reason behind this is limited supply of bitcoin. Most of the cryptocurrencies have limited supply, bitcoin is one of them. Bitcoin is always on high demand but has a limited supply. When the demand raises, resulting higher prize. What will be the another reason, in your opinion.

The scarce supply is not bitcoin's preeminent, there are also many altcoins that have a finite supply. Supply is limited and if demand increases, prices will increase.
I think what sets bitcoin apart from the rest of cryptocurrencies is its decentralization. So far, there is no 2nd project that is completely decentralized like bitcoin, with no moderator, no company, and the operation of bitcoin is given to the community. Bitcoin's security is also a big plus, all altcoins have been hacked or had outages once or twice, but bitcoin has never had such a problem.

[KaliLinux]

Bitcoin already has a long history in cryptocurrencies.  It is the basis of all cryptocurrencies.  It is the mother of all cryptocurrencies.  I think everyone wants BTC as their asset but at the current price people are choosing altcoins as their form of investment and they hope their altcoins will bring them a return.  I think as long as you are investing in cryptocurrency then BTC is something you should have.

I do agree. Bitcoin=cryptocurrency, the limited supply, and total decentralization are two main reasons people chose Bitcoin over Alts for long-term investment and this has continued to aid the pricing and has kept Bitcoin above all other Cryptocurrencies. However, as you said, price is the major reason others cannot afford to invest in Bitcoin because they believe that amount would bring a higher return on Alts than Bitcoin.