sorry I haven't heard of the altcoin you mentioned before, maybe that altcoin is only popular in your country or you have made a profit from some of these alts so you say they are "gems". Everyone will definitely have a different opinion on this and alts that have provided huge profits in the past will be considered gems. I understand what you mean, if the alt was truly a gem then it wouldn't be a dead altcoin because investors wouldn't abandon it because it has utility.