Well prices at GC come 2 ways, weekly sale prices, and standard price changes. Something like this might last a while, in my experience it is the most marked down item in the entire time I've worked for the company and there is a company contest to move older new games right now. There is just a lot in the company, and a lot used floating around.
You would be surprised what you can find within the company, they'll ship anything between stores for a shipping charge, or if you know someone you might get them to move it, i.e. SF tournament sticks, Devil Summoner 2, various collectors editions. One collectors edition that seems to be a lot kicking around is RE5, I wouldn't be surprised if those dropped soon.