Earlier today I was in my local Barnes & Noble Bookseller store. I asked the clerk about the "Card Sharks," game, and they told me their computer showed they have it at the warehouse. She was kind enough to place an order for the game to their location, and took my name and phone number. The clerk said the game might arrive next week, and she'd give me call when it comes in.
In the meantime, you can go to the B&N website, and either check on the store's stock status, or even order it online yourself.