From Circuitcity.com "There is no restocking fee for defective product returned in exchange for the exact same product, or for product originally purchased as Open Box."

From BestBuy.com "A restocking fee of 15% will be charged on opened notebook computers, projectors, camcorders, digital cameras, radar detectors, GPS/navigation and in-car video systems unless defective or prohibited by law. A restocking fee of 25% will be charged on Special Order Products, including appliances unless defective or prohibited by law."