Just to let you know, the invention of bitcoin is what begot altcoin, bitcoin has been in existence for long before altcoins where been created, bitcoin being the oldest is the most popular and trusted cryptocurrency so far and this is more reason which it's at the top, no matter the condition of a father he is still the head of the family, the fact that the new blockchains are doing much more better than bitcoin doesn't mean bitcoin has lost it's purpose of creation.
the first one to come always gives a special impression, moreover, the development is very good, the trend always rises in the first decade of bitcoin's birth. although many new altcoins emerge with better technology, strategies, and real fundamental functions that are really needed, all of them will still refer to bitcoin. If we have an analogy, bitcoin is like the center of the solar system, although many new stars appear every day, the sun is still a special star in the solar system.
The highest market capitalization of BTC, traded in all crypto markets as a pair, market confidence is so strong that it has a large number of holders, making it a promising investment even with high risks. for those who like a challenge this will be a new thing to try.