Apple users are being offered $650 if they switch over to Microsoft

Microsoft is offering a limited time Surface Pro 3 promotion via which users can get up to $650 in store credit for trading in certain Apple MacBook Air models. The new promotion, running June 20 to July 31, 2014 — “or while supplies last” — requires users to bring MacBook Airs into select Microsoft retail stores in the U.S., Puerto Rico and Canada. (The trade-in isn’t valid online.) Microsoft execs have been touting the Surface Pro 3 as the tablet that can replace users’ existing laptops, including MacBook Airs. Microsoft’s Surface.com site The fine print: “To be eligible for trade-in, device must power on to be considered working. Water-damaged devices and devices with cracked screens are not considered working devices for purposes of this offer.” All trade-ins are final and provided as part of the “Recycle for Rewards program” from CExchange LLC. The trade-in is limited to one trade-in per purchase. To get the maximum ($650) value, users have to apply the store credit toward the purchase of a Surface Pro 3, the most recent model of the company’s Intel-based Surface tablets. The Core i5 version of the Surface Pro 3 began shipping on June 20.