I'm new about mining coins, but i just start mining alt coins. And i think better you save it and wait, because it's have a change that coin's price can increase.
It is difficult to say. Most of the altcoins are scams. It is better to mine and sell most of them. Just keep very little.
Well said. Its difficult to completely depend on altcoins. Altcoins rise take place only at certain times. Bitcoin is not like alts, it gives gradual rise.