In my opinion, altcoins are not a good choice and will not be used in the future. altcoin is not showing its position in the market because of the significant decrease in value.
Not all altcoins are bad but yes majority is of the useless ones. We shall not put our maximum funds into them as they disappear very quickly from the market. As far as their future usage is concern, they are simply; the famous ones will be used for daily small payments for food and so on. They could be used for clearing bills but never would be used for making big transactions because that is only done with bitcoin.