If you look at the annual change in the price of Ethereum, it grew by 1.5 times. And this is despite market fluctuations and significant drawdown this year!
But ETH highest price is 1500$, so 1500$/500$ (average) = x3. Hm... I think that 2018 fall and winter will be profitable. Think and hope.
Tether issued $250 million of USDT so pump is near