Then if it is too late to buy ETH, my question can seem naive but I have to ask:
Which coins have that potential of a x000% increase in 2017-2017 ?
No one can tell, thats why most of the people here are only invested in BTC but talk about other coins. I had invested 25% of my BTC in altcoins and though it is quite profitable, it would have fetched much more profit if I had not invested in other than BTC.
Well, its your choice, in BTC you will eventually end up with a profit.