$5 here
http://www.newegg.com/Product/Product.aspx?Item=N82E16832777095
20% off coupon ($1) EMCWWPW22
Total for me came to $3.99
Just activated via steam
http://www.newegg.com/Product/Product.aspx?Item=N82E16832777095
20% off coupon ($1) EMCWWPW22
Total for me came to $3.99
Just activated via steam