Groupon offers the Sega Genesis Classic Game Console for $39.99 with free shipping. (P.C. Richard & Son charges the same price.) That's the lowest total price we could find by $10, although we saw it for $5 less last month. It includes two wireless Genesis-style controllers, 80 retro games, and support for original cartridges.

Also available is the Atari Flashback 5 Retro Gaming Console for $39.99 with free shipping. (P.C. Richard & Son charges the same.) That's the lowest total price we could find by $9, although we saw it for $10 less during Black Friday week. It includes two wireless joysticks with 92 built-in games.