You can use altcoins as some kind of variably currency. You can transfer your main funds into stable altcoins to keep them safe with a chance to even get some benefits from it.
of course you will get the benefits of Altcoin, Altcoin will give you money if the value of your coins goes up high. Altcoin has the potential and good quality will give you a big advantage if you are good at managing it. Altcoin has many advantages and depends on what coins are very profitable.