I know it’s not really a deal, but you can order them at a fair price (under$300!) at Office Depot right now. My ETA is 10/1. I’m not a miner but snagged me one for gaming.
MSI RX 580 GAMING X 8G Radeon RX 580 Graphic Card – 1.34 GHz Core – 1.39 GHz Boost Clock – 8 GB GDDR5 – PCI Express x16 Item # 467491
MSI Gaming X 8gb $299.99
http://www.officedepot
MSI Armor 8gb $279.99
http://www.officedepot
Gaming X 4gb $269.99
http://www.officedepot
Also a 570 or 2, just follow the other products link.