I don't know if bitcoin is an option - I have had bitcoin for so many years, I have even spend some of them on good items, so therefor the only real cryptocurrency for me is bitcoin, all others are just pretenders there where late to the party ;-)
Altcoins are not created as figures in coin competition. Investing in old, top cryptocurrency will not give the same return in the investment as others make an investment in potentially low cap altcoin.
while low-capacity Altcoin can still produce, of course, it will be chosen by many people, but if you choose low-capacity Altcoin it has a greater risk so sometimes someone chooses high-capacity Altcoin and has great opportunities in the future.