Sega Genesis Classic Console ($35-$70)
Produced by At Games, this retro machine purports to offer the same thing the NES Classic does, except for 16-bit Sega Genesis games -- a "next-gen" console at the time, technically. You should still be able to pick one up in-store at Bed, Bath & Beyond, of all places, although it's also available on Amazon at a bit of a markup. The box comes with 40 iconic Genesis titles like Ecco the Dolphin, Sonic the Hedgehog II, and Golden Axe, and it's also got a cartridge slot that'll allow you to fire up those old Genesis games your mom (hopefully) didn't throw out to make room in the attic.
It's not all sunshine and rainbows, however. The Genesis Classic lacks HDMI output, meaning you'll have to mess around with oldschool A/V cables that may or may not work with your TV. Also, the controllers aren't exactly the iconic Genesis button-mashers you remember. Still, if yours was a Sega household during the console wars of antiquity (aka the '90s), you should be able to look past these faults.