Probbaly one of the most promising low cost altcoin as of right now, is TRON, this coin is promissed to be the next hit andd for that many people have started investing in it, only yesterday the coin was at the bottom of the market cap chart now it is number six, and by that it has surpaased any known altcoins, like dash and litecoin which have been on the scean for a while, its price has started going up quickly and it is right now worth 0.2$ and it would be just a matter of time before it starts skyrockting.