The difference between the collectors edition and the regular version of a game can run anywhere from ten dollars upwards. The question is, what makes it woth it? I got the limited edition of Fallout 3 just for the luchbox and the bobble head, which I found to be well worth the twenty extra. I plan on getting the collectors edition of the new Batman game, because it comes with a twelve inch batarang among other things. I usually upgrade to a collectors edition for a figurine or somesuch. What makes the difference for you?