Dell Home, via its Member Purchase Program, offers the Dell Inspiron 3455 AMD A8 Quad-Core 2.2GHz 23.8" 1080p Touch All-in-One Desktop for $636.99 with free shipping. That's the lowest total price we could find by $63. It features an AMD A8-7410 2.2GHz quad-core processor, 23.8" 1920x1080 (1080p) IPS LCD touchscreen display, 8GB RAM, 1TB hard drive, DVD burner, 802.11ac wireless, Bluetooth 4.0, and Windows 10 Home 64-bit.

Note: Dell's MPP is available to select groups, including students, government employees, military (active and retired), credit union members, and health care workers.