Found a Bioshock Limited edition at gamestop

[twesterm]

Also,
http://video-games.attr-search.ebay.com/bioshock-limited-edition_Games_Microsoft-Xbox-360_W0QQa14Z43930QQalistZa14QQfromZR40QQgcsZ1135QQpfidZ1413QQpfmodeZ2QQsacatZQ2d100

http://www.amazon.com/Bioshock-Limited-Xbox-360/dp/B000VESHEQ/ref=sr_1_5?ie=UTF8&s=videogames&qid=1220722351&sr=8-5

I'm really not sure where you're getting this $200-300 number.

-edit-

Oh, the new ones on Amazon are $200+.  Just buy a used one, it's probably in better condition than the one you're talking about.