Summer doldrums are setting in. Really surprised we aren't seeing more about China shutting down mining farms in the forums. We have dropped over 110,000 ghs on eth.
I've got a small farm of 15 cards doing 800mhs on eth. I'm at 11 cents for power and to Phil's point above I am still making a profit.
It's been about 1 year since I started back mining. I had a 1060 6gb in a pre built rig, added a open box 1660ti late may. Then built a new rig last June with a 5700xt I got brand new for $346. Added a 5700 in July I got for $323 brand new. I really miss newegg and eBay 10% off coupons.
I originally calculated my roi to be about 10-12 months and expected to get about $0.80 to $1 a day in profit on each card. I started buying more cards in August last year at between $240 and $350 for 5600xt to 5700xt and built a 6 gpu rig that mined from September to January before I expanded it to 8 and converted the amd's into Nvidia's to get to my current 800 mhs.
I really wish I had built a 2nd 8 gpu rig and let it run for the winter months but now that we have hit summer I don't want to add more as it's just to hot to have that many gpu's in my house.
For ease I mine on Nicehash and convert to btc. I got really lucky in my timing and was able to sell enough btc as it climbed to cover my equipment costs, electricity and in most cases sell used cards to cover the full costs plus $100 cash on upgrading to Nvidia 3000 series.
I've roi'd on all my cards and the parts for rigs. I cashed out 50% of earnings each month for the first 4 months of this year and should have sold more than I did in may.
I think profitability will be enough that I can mine through the summer heat and still pay my electricity with about $400-$1000 left over each month. In winter I could still mine if we dropped to about $2 revenue per card per day depending on the coin.
I'm taking 1-2 days revenue a month now and DCA into ADA, Tezos and Algorand as a speculation bet on newish coins and POS with actual use cases.
I think I am more sideways than bull or bear right now.