If you can't get this at Circuit City ($16.96) it is currently available at bestbuy.com and their stores for $19.99:
http://www.bestbuy.com/site/olspage.jsp?skuId=8167119&type=product&id=1162593435043
This is almost certainly a universal price drop. It remains to be seen if this is a GH movement, but I tend to think the game is out of print. There is a MGSPO Plus game in the works in Japan, but it isn't certain if it will come here. The Plus version is not a GH game, but an expansion for this one.
Update:
Sold Out online. You'll have to try pickup, or look to another large store chain like Game Crazy for the price drop.
http://www.bestbuy.com/site/olspage.jsp?skuId=8167119&type=product&id=1162593435043
This is almost certainly a universal price drop. It remains to be seen if this is a GH movement, but I tend to think the game is out of print. There is a MGSPO Plus game in the works in Japan, but it isn't certain if it will come here. The Plus version is not a GH game, but an expansion for this one.
Update:
Sold Out online. You'll have to try pickup, or look to another large store chain like Game Crazy for the price drop.