Or whatever. I've always loved my Sega Genesis when I got it for Christmas the year it came out so it was important to me to find one that had the original box I remembered from way back when and I did!
Amazing bargain price aside, I highly recommend getting an original generation 1 Sega Genesis and peripherals and skipping the online play and compliation disks for later. Nothing beats the pop of the cartridge. I even have a playsega account where I can play these things online anytime, but having a Genesis back in the living room-wired controllers and all-is the best.
Plus, its cheap! The console is pennies compared to any other console available today and the games too.
I recommend picking one up and the classics from Altered Beast, Super Thunder Blade, Super Monaco GP, Target Earth, and Herzog Zwei.