Yeah, I've got 21 3080s/3090s, and I'm still mining (NiceHash switched algorithms for me automatically). But I've also listed my machines on vast.ai to rent out for deep learning. When they're not being used by a client, they're mining still. My electricity is super cheap, though $0.0875/kWh. That said, it's hardly profitable at all. I'm just speculating and breaking even at this point.