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 are correct mate, We must be sure about the altcoins for long term. Majority of them actually are good in hype but in the end it turned into nothing. Always look for the top coins in the market that listed at the coinmarketcap in which is top 10 coins. And one of the good for long are Ethereum, ADA, Waves, Pundix, Vet, and Nem.