That's true, but other coins went along for the bull ride in 2017.  Dash hit about $1500 if I'm remembering correctly, and look at what price it's trading for now...about $50.  So it isn't exactly as if Eth *deserves* to be trading at $1000.  Maybe $140 is a fair price for it right now.

However whether the current Eth value is fair or not, I do think there is a ton of upside potential and that it will be worth more than what it is now.  I don't know how long it's going to take for the price to rebound, but I'm pretty sure it will, especially if and when it goes full proof of stake.  That should turn a lot of people on to it, which should be good for at least a short term price increase.