Looking at the US price list... Rare/VALUABLE (cause it might not be so rare, but high in price). There isn't much to go by, I think we have to wait for this gen to be over to see what actually sticks that wasn't a limited edition print.
360:
Dead Space Ultra Limited Editionly (Only 1k copies made, sells for over $300 on average)
Mass Effect 1 Collectors Edition (Low prints, people don't want to give them up)
Fallout 3 Survival Edition (Amazon Exclusive, low prints)
A bunch of other collectors editions.
I don't see anything (US wise) on the 360 that isn't a collectors edition going way above MSRP.
Wii:
Metroid Prime Trilogy
Godzilla
PS3:
Uncharted Fortune Hunter Edition
NBA Elite 11
Fallout 3 Survival Edition
DS:
Zelda Twighlight Princess Demo Cartridge
Aninimaniacs: Lights, Camera, Action
Phoenix Wright: Trials and Tribulations (OOP, game going up in price due to demand/reviews)
House MD (Not sure if this game even got released in the US, but I've seen copys float around on eBay ?)
PSP:
Tenchu: Time Assassins
It's just that simple.
