Place yourself in this scenario: you don't get to play a version of the game (demo, beta, etc.) before it's released and therefore get a chance to judge the game for yourself. Say you've seen some gameplay, and it looks good, but you're still not quite sure. Based solely on your opinion on Bungie as a developer and their past successes and mistakes, would you be willing to spend the extra cash on a limited edition? I realize there might be some bias, since this is Bungie's website. I personally would, as to me, Bungie has proven themselves to be a developer that is extremely passionate about the games they make.