I bought ethereum because I have seen lots of projects using ethereum blockchain technology as well as lots of token out there in market based on ethereum network . There is lots of use cases with ethereum network smart contract creation, decentralised exchange, games like crypto kitties still lots more .so if you believe concept invest snd hold
I do agree that Eth will be one of the good investment specially in a long term investment. This is a also really productive system because this is use in a lot of transactions and considering that this is the next good coin to bitcoin it is mean that it has the better marketing system that people can give their trust and do patronizing it. It is also volatile but like bitcoin it has also the ability to moving forward and make it's own rising after a long run of decreasing period. It's really has a possibility to grow more and have it's long existence in the market.