Newegg via eBay offers the Acer Aspire GX-281-UR17 AMD Ryzen 5 3.2GHz Gaming Desktop PC for $559.99 with free shipping. That's the lowest price we could find by $80. Features include: AMD Ryzen 5 1400 3.2GHz quad-core processor 8GB RAM, 1TB 7200 rpm hard drive Nvidia GeForce GTX 1050 2GB graphics 802.11ac wireless DVD burner Windows 10 Home 64-bit