Most altcoins are very overhyped right now and solely driven by price speculation! Long term most of them will be outperformed especially by the top coins (BTC, ETH , Litecoin)! New investors also make the mistake to invest in low price coins, thinking they could go to bitcoin level prices... I actually wrote a post about that bias recently:

Link: https://steemit.com/cryptocurrency/@memekings/common-crypto-misconceptions-cheap-coins-are-not-always-cheap