If you want a real answer, I think in the long run ALL coins will go up, regardless of what they are, the CLASSIC ethereum project still has a strong following, and when the coins first split , ethereum classic was maybe $1 i think, the price will continue to grow as long as people buy it, and that seems like it wont stop happening anytime soon. realistically all coins in the top 20 right now are good buys for the future, as it becomes harder to mine these coins and people stop selling, prices will logically only go up