The website won't ever update for the CE on GS in terms of making it $30 to correspond to the in store price. It may eventually go to $30 on the website, but I wouldn't hold my breath. It was converted to used, so they removed it from their in store system, there is no way to check the stock unless you go to the store and look/ask. The system only shows Brotherhood as Used or New, with no CE in sight.
I was able to get one of each for 360 and PS3.