Well there are a lt of thing to be discuss but for me whenever i buy cheap altcoins i make sure that the certain altcoin is not a dying coins there is still demand but not going down but stable so if there will be a bull run you can gain a large profits
This is good stand choose coin that their has still demand on it. The price could grow in the market even these days it is a cheap value but make sure their project is good. Let us invest in the coins that is worth investing.