And on the other hand, sometimes people collect altcoins to get wealth faster and more because we already know that apart from Bitcoin there are many good altcoins that can be many times their initial price.
All the altcoins you mentioned can't be an alternative to Bitcoin, BNB is a nice coin to invest into but not as an alternate to bitcoin instead you should invest in it because it has big potential as it just had a recent burn of circulating supply which will help the token to increase to new prices when the bull market starts officially, BNB is one of the good altcoins to invest into.
BNB is controlled by Binance exchange and although they said their blockchain is decentralized but we all know that's a lie because if there was to be an attack on a project on their blockchain. They'll do everything possible to prevent the hackers from been successful and that might include halting the blockchain. And only centralized blockchain can be paused because they're been controlled so don't think BNB is fully decentralized.
Altcoins create wealth but they also destroy wealth when you invest in the wrong projects or you made investment in scams that you didn't realized were scam as of when you were investing. We have many scams as scammers know investors are looking for quick ways to make money and deceiving them to think they have found solution can make them much profits through scams.