This is an incredible deal through Greenman Gaming. They already have Nba 2K15 on sale for $29.99. That is 50% off the retail price. If you register with them, they will send you a 20% voucher code to apply to the sale price. This is for the Steam download version. You will need to sign up for a free Steam account also. Follow the link below for the deal. Greenman Gaming -Log In
Probably one of my favorite games to be honest with you I wonder how you procured such deal I am definitely going to be using this.