sometimes to buy does not have to focus on prices at this time, but at the lowest price, hight price, and also the market cap. because these 3 elements really determine the potential of future prices.
It seems that you also have to consider the circulation, total supply, team performance, and the products they have, because all these elements cannot be separated. So if you find altcoin with low supply and capitalization, have good product and team performance, but the value is not comparable it is strongly recommended to buy and hold it until the next few months or years. Because I'm sure this will bring huge profits.