I'm a little bit worried about this too. To be fair, it did good by being on Amazon's top best selling items for a day or two but it was surprising that it didn't sell out right there and then. I also wonder about the limited numbers since you can get this on Gamestop, Best Buy, Target and Walmart as well and they haven't sold out either. I would say this though, I think the problem was that it got announced and went up for preorder too soon. Usually these kind of things get announced/go on preorder one or two months before the game comes out to generate the feeling of "shit this is going to sell out better buy now." This one got announced all the way back in September when it still had the spring release date. It just created a lot of safe room for the customer to not having to stress about getting it, especially when it became apparent that it wasn't going to sell out. Maybe the better route would've been to say it was coming but officially announced it this year at least. The Sonic Generations CE proves the franchise can have stuff like this sell well (though the circumstances were different since it was Europe only and had the 20th anniversary hype to back it up, but it used the tactic I described above which proves it works) so it's a little disheartening this one seems to be not doing as good.