I just called to ask, and Replays Gameware sells them for 24.99 or 39.99 with expansion pack. They are guaranteed to play like new for 30 days. They don't have them listed on their website which is replaysonline.com, but I talked to the girl who works at the location nearest me (who is so fine I can almost taste her) and she says that if you put in a special request through the site, they will sell it. They have a ton of s**t that isn't on the site that they sell in the stores. Their prices are pretty cheap.
Ask about some more stuff so I will have an excuse to call her!