Innosilicon just released a 500 mhs miner at 750 watts, no sure who is buying a it with progpow algo change.
They didn't just release it... it's been available for over a year
This is probably why ETH value has gone to the dumps. I've always been a strong supporter of ETH but they never deliver or follow through on their promised timelines. They said they would switch to POS very soon, three years ago. There seems to be little progress to make ETH really competitive on a global scale.
Theres always hope in the future ETH will rise again, but at this rate, it may be better to invest on other things for now.