I was just looking at the coinmarketcap table since 2013, I was surprised in what I saw, many coins topping the charts then are now almost non-existent, we need to be careful of the kind of coins we hodl especially for long term. Most of these projects just die after the initial hype.
You should know that over time, projects that are not invested in development will regress compared to other projects. Many projects are born but there are very few successful projects. I believe that very few people hold those altcoin from 2013 until now