Holding altcoins for a longer term is disastrous, many have lose their wealth on altcoins. Although am not a good investor of altcoins, but have invested much in some altcoins which later landed me in loose. Am now very caution of how long I have to hold my altcoins before sell. This singular act have ruin a friend life in 2017. He invested in one project then hoped that it profit yield positive, but the rivers was the case as he run at lost. I don't hodl altcoins on a long-term.