People who are aware of which ones are better to maintain as future assets because of their superiority are people who are willing to learn and they are people who will be lucky with their choices.
Many people are starting to convert altcoins into Bitcoin by selling a number of altcoins that still have a price to buy Bitcoin. This is what I mean by people who want to learn as I mentioned above.
Most coins tip and end up in the dump and make your wallet look like a rusty trash box. It's too difficult to remove useless rust.