This AMD Ryzen 7 1700 desktop with a Radeon RX 560 is on sale for $600
https://www.pcgamer.com/this-amd-ryzen-7-1700-desktop-with-a-radeon-rx-560-is-on-sale-for-dollar600/
Graphics card prices are starting to inch down towards MSRP, but there is still a long way to go. With that being the case, it makes more sense than ever to consider a prebuilt PC, even though we much prefer to roll our own rigs. If you're thinking about buying a pre-assembled system, you can snag a budget gaming PC from Costco for $600.
It's the Lenovo Ideacentre 720, which Costco has marked down $100. There is a $15 shipping charge if you're not able to pick it up locally, but even with shipping, it's a relatively friendly price for a gaming desktop.