Simple name the most valuable (rare) games you have. For me I have Silent Hill 2 Greatest Hits version(includes extra content), Sillent Hill 3, Sillent Hill 4, Dragon Ball Z Budokai Tenkaichi 3 for PS2(surprised how much this goes for), Elder Scrolls Oblivion IV 5th Anniversary Edition and the Metroid Prime Trilogy which has to be my most valuable game in very condition. I have the cases for all of them, just missing a manual for Silent Hill 2.