look at current market price, ethereum is like shitcoin right now. but maybe in the next year ethereum will become king of altcoin again , because on January 2019 ethereum will make their hard fork called constantinople hard fork. so it's not wrong to buy some ethereum now.
if you talk Ethereum is a Shitcoin how about other altcoin, they are morethan Shitcoin ever, if you just thinking for now you are the losser, Ethereum nad other altcoin still enter in recovery fase, that's why the price going down and down