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.
Unless you have a crystal ball I do not see the point either, altcoins can disappear really quickly and if you are holding some of those coins when that happens then you are going to lose all your capital invested in them, it is better to just invest small amounts of money and try to obtain small profits out of your trades, this is a more conservative way of making money in the markets but when it comes to altcoins that is a necessary precaution to take if you want to be here in the market for the long run.