I own a decent amount of what is considered valuable, some rare, some low print. I collect a lot of RPG's mainly. I have almost every PS2 RPG, a few late ones have eluded me (like .hack 4, g.u. 2 + 3, Monster Rancher 4 Etc.) But I have Suikoden Collection, SMT Collection, Tales of Collection, Final Fantasy Collection, etc. Many are missing but these are notables.
SNES:
Lufia II (Loose Cart)
GBA:
Final Fantasy IV (Sealed)
Final Fantasy V Complete
Final Fantasy VI (Sealed)
The Legend of Zelda: A Link to the Past (Sealed)
Castlevania Double Pack (Complete)
DS:
Radiant Historia
My World, My Way
GCN:
Metal Gear Solid Twin Snakes
Fire Emblem Path of Radiance (Sealed)
Zelda 4 Game Collection
Zelda Ocarina of Time Master Quest
Skies of Arcadia
Wii:
Dokapon Kingdom (Sealed)
Metroid Prime Trilogy Steelbook (Sealed)
Xenoblade Chronicles
Fire Emblem: Radiant Dawn (Sealed)
Super Mario All-Stars Limited Edition (Sealed) x3
Kirby's Return to Dreamland (Sealed)
Zelda Skyward Sword: Gold Remote Bundle
Wii U:
Zelda Wind Waker HD Limited Edition (Sealed)
PS1:
Suikoden
Suikoden II
Mega Man Legends 2
Tales of Destiny
Persona 2: Eternal Punishment (Sealed) x2
PS2:
Easier to post a picture, Its older but most of it is there.
Xbox:
Knights of The Old Republic
Conker Live and Reloaded
Xbox 360:
Bioshock Collectors Edition
Mass Effect Collectors Edition
Tales of Vesperia Premium Edition (Sealed)
Fallout 3 Collectors Edition
Culdcept Saga
PS3:
The Force Unleashed Ultimate Sith Edition (Sealed)
Demon's Souls Deluxe Edition
Hyperdimension Neptunia Premium Edition
inFamous 2 Hero Edition
Cross Edge
Mortal Kombat: Tournament Edition
Tales Of Symphonia Chronicles Collectors Edition (Sealed) x2
I will add more more as i think of them.