Altcoins are like the pennystocks, they don't really have any kind of utility and the chances of their success is little to none. The only way altcoins could offer a true "alternative" is if they were actually innovative and offered something in the real world as a "currency" (hence the name crypto-currency) instead of just some toys to be traded in the manipulated altcoin market.
So far we've had none of that...
Altcoins are worse than penny stocks by their centralization and premined coins or thin-air minted coins or tokens. They are too easily for creation so founders and core developer team can easily abandon their projects and create new ones. This basic trait of altcoins makes them are very sensitive to die anytime.
Top altcoins are like penny stocks but non-top altcoins are like dead coins, and it's only matter of time when shitcoins die.
I tried to warn people about risk of shitcoins.
Don't buy altcoins because they are top altcoins.