Altcoins are too volatile. It changes almost immediately in price, making it easier to cash money out everyday or lose money everyday depending on the movements of the coin. Considering bots to trade for you in altcoins if you would aim the daily grind would be helpful.
In volatile altcoins investment should be low than top altcoins. Short time invest or day trading I would prefer new altcoins but it has high risk. You should be ready to lose some money.