With a good basis we can come up with a realistic approach, before some people think that altcoins are scam and only bitcoin is legit but now things a big and you can tell it with the lowering dominance of bitcoin in the entire market. We can never be sure what will happen in the future but give that possibility in the future, crypto is full of surprises as price can change abruptly in just a short period of time.
You are right. Earlier, a lot of people used to think that the altcoins are mostly scam, and only a very few used to invest in them. But now the situation has changed completely. ICOs with very little backing are gathering hundreds of millions of USD.