@reinisp Yeah I just learned not that long ago how to overclock properly with Claymore. It makes a world of difference. If you could get some ridiculous hash rate from overclocking 1080s they'd totally be worth 500$. I've pulled 35MH/s on simple R9 290s if I could just keep the room cold enough. But back then 290s were only $150. Now they're $300+.
I tried these chinese suppliers on alibaba but they're all scams.