MrClass wrote1070's are a hot commodity now. They are much more efficient in crypto mining and have risen in value.
You can negotiate even further as I'm sure he is swapping for this purpose. He is asking to swap so he has to bear the losses.
Exactly , aside of Cypriot data mining , I think the 1080 is not enough for current AAA titles on 2160p to have a smooth 60 fps (with out any AA too) experience without dialing some setting mainly Textures Quality , Shadows , HBAO+, Real Time Space Reflections ... Examples: Watch Dogs 2 , Ghost Recon Wild Lands, Dues Ex Human Kind Divided, Dishonored 2 , Rise of the Tomb Raider .. Even 1070 is not enough on these titles to have a locked 60 fps on 1440p , thus 144hz is out of reach for the 1080 and 1070 on 1440p (which requires at least 2x MSAA or SMAA which adds head over). Volta might change things up but next year games will be more demanding and the cycle will repeat. I think I will keep and sell before the release of Volta in one month (ETA to Lebanon will be - or + 3 months after the official release,