I see a lot of negativity about this coin las days. But, despite this, my faith in ETH is strong. I don't believe that this coin can depreciate. Most likely the price fell due to the general fall of the crypto market. ETH does not have a worthy replacement yet.
I agree that a worthy replacement is not there yet (even though neo is quite close and eos is also making its steps forward). Eth is still rather strong, but I also understand why people don't like it. With eth you can never be sure your money is safe and that you want wake up one day with your money eternally frozen, like all those people on parity.
As for the drop, though, I think it is very temporary and natural, as the whole market went down. I am sure we won't see eth going down more than to $600.