How one "loses" an entire room aside, it supposedly contains every Sega game ever made. 
http://kotaku.com/5037342/sega-find-room-containing-every-sega-game-ever-made
http://www.joystiq.com/2008/08/15/peer-inside-segas-secret-game-cave/
The old-school Sega fanboy in me thinks that the holy grail doesn't look much different than this.
Hopefully they actually play some of them to remember what made them great and make them realize why they're so god-awful now.

http://kotaku.com/5037342/sega-find-room-containing-every-sega-game-ever-made
http://www.joystiq.com/2008/08/15/peer-inside-segas-secret-game-cave/
The old-school Sega fanboy in me thinks that the holy grail doesn't look much different than this.
Hopefully they actually play some of them to remember what made them great and make them realize why they're so god-awful now.