You can get some free/cheap DLC with your $2 coupon code
http://www.amazon.com/s/?_encoding=...!11846801,n:979455011,n:2445220011&sort=price
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http://www.amazon.com/s/?_encoding=...!11846801,n:979455011,n:2445220011&sort=price
When you check out, it'll ask for your credit card. Enter it. On the next page, enter your promo code (SQRLUVIO) and it'll deduct $2