Up for sale is my RetroPi Cart CIB.

$100 plus $6 shipping in the USA. 

13 Emulators: NES, SNES, N64, Gameboy, Gameboy Adv, Gameboy Color, Atari 2600, Atari 7800, Atari Lynx, Sega Gamegear, Sega Master System, Sega Genesis, Sega 32x

Hundred of Games for all the systems above, add more games/emulator if you like.