Ethereum is still one of my most trusted cryptocurrencies, because I know that Ethereum can always bring a lot of help to the market, which is also an important reason for Ethereum to survive.
Yes ethereum is still one of the best crypto to hold though it has made a huge drop on its market price. However, I do not think that we have also to deprived investing on other altcoins also like the XRP, BCH and some that are listed on top 10 rank landed on CMC list.
Bitcoin is still the king of the crypto so it might be better to invest your money on other crypto and should not only focused on one crypto just to get more chance on earning profit from its market price movement, volatility or the pump and dump scheme profits.