Today only, Dick's Sporting Goods is offering free shipping sitewide with no minimum. The Proform 380 CS Treadmill has dropped from $799.99 to just $499.99. With free shipping, you are saving another $114! This treadmill has an iPod compatible audio set-up, a built-in speaker, 6 preset workouts and more. Sales tax is charged in states with Dick's Sporting Goods retail locations. Amazon does match this price and does not charge sales tax, but has only 3 left in stock. Some exclusions do apply to the free shipping.