Walmart offers the Retro Games The C64 Mini Computer for $39.99 with free shipping. (You can also opt for in-store pickup to drop that to $39.59.) That's $15 under our December mention and the lowest price we've seen. (It's the best deal now by $10.) Modeled after the Commodore 64, it features HDMI (for 720p output), two USB ports, save and resume functions, and 64 built-in games. A joystick is included.