I do not see the point in buying and holding cheap altcoins in the hope that they will become much more expensive. Bought, 2-3 days and sold, that's my strategy.
You're a good trader if that's your strategy. Jumping from one to another and rinse and repeat strategy. It is the purpose of altcoins and to be traded for this kind of strategy.
Many of them are pump and dump altcoins and if you are too good to ride with the pump and get out after completely selling it, you'll always make a good amount on it.