Ethereum will be a new world money. 5 years a big time to analyze something like that. We even don't know what will be in a year.
I can see a good future on this ethereum because I know that this coin was raising up on the following year. So it's better to hold it now, I also plan to invest bitcoin now and save it for five years. I believe that after 5 years value of ethereum coin were reach $1000 or above.