Well if i were you i would not put all of my money into only one coin. Ethereum will be good you are right but you can make much profit if you put your split your investments in couple of high potential coins.
I'm supporting this idea. Intrusting all of your money is just trusting your pockets and life in ETH. Spliting the investment or having another investment will cut the risk of losing in half. Putting all of your money into one coin is like walking in the edge od the cliff blindfolded