The price value, if your going to invest on altcoin you shod be shoo closing coins that has many holders, coins that has many uses, coins that is making progress everyday and most of all the coins is on top 100 coins that are always involve on topic aside from top 100 on the exchange list.
Since last few months, we have seen a major change in the crypto market and that now the trend is changing as more number of investors are going for day trading and short-term investment of money rather than that of holding of the coins for longer time. because of this, the demand of the altcoins has been increased at a significant rate as people have started using it for the sake of trading.