I started to power up some rigs finally after shutting them down in November 2018.

ETH is profitable but not that profitable however I think in the near near future the ratio will improve, I think we will at least get a 50% gain for the ETHBTC ratio when BTC corrects hence its a good way to accumulate some ETH and then switch to BTC eventually.

Because I have a feeling that if the $2/gpu/day come back then the difficulty will start going up and GPUs will be sold out everywhere again.