i think buying ethereum is a always a good decesion in the long term such a coin can be successful thanks to the community of developers behind it good luck for all hodlers of ethereum in the long term 
ETH has a strong community such as bitcoin, the hodler never felt a doubt to believe that the ETH price will goes up again when its price goes down. You may see when its price went down to $150 and more lower then that last year, but the community has a believe to change price again and make a confident that the ETH will increase again. And it has showed by them, ETH prices come back to up again and maybe never fall to $150 and lower then that again.