Borderlands 2 for 4 dollars?!

http://www.newegg.com/Product/Product.aspx?Item=N82E16800127014

One of my many groups posted this in an announcement. I went and checked and it currently has what it says to be Borderlands 2 in my cart for 2.00 plus 2.00 shipping. I'm still a bit skeptical, though, so I wanted opinions from people I trust more than a random trading group.

PS. looks like they send it through the mail - like you get a card with the code for the game on it in the mail, so there's no instant confirmation on whether or not it works, and I'm sure it'll be gone by the time they arrive.