Thanks everyone! this is the info I've been trying to research but there just isn't enough on it to find any worthwhile results to gauge what's best on skein. I don't know if 1080ti is in my price range, but you seem to be getting very good ROI, so I might consider just shelling out the extra $200. But what would be the most cost effective GPU? Hashrate to power? I was thinking something like a 1060 or 1070 just based off of what I can see on yiimp.
now that i think about it low 900kh to -200w is pretty damn cost effective...