TechRabbit via eBay offers the used 2.4-lb. Apple MacBook Air Intel Haswell Core i5 1.3GHz 11.6" Laptop for $399.99. Coupon code "PBACK2SCHOOL20" cuts that to $319.99. With free shipping, that's $100 under our refurb mention from two weeks ago and the best we've seen in any condition. (It's $180 under best we could find for a refurb today.) It features an Intel Core i5-4250U 1.3GHz Haswell dual-core processor, 11.6" 1366x768 (720p) LED-backlit display, 4GB RAM, 128GB SSD, 720p FaceTime camera, 802.11ac wireless, Bluetooth 4.0, Thunderbolt, and Mac OS X 10.8 (Mountain Lion). Deal ends July 16.

Note: No warranty information is provided. The description states the Macbook shows significant signs of wear with heavy, deep scratches, dents, and bent corners which may prevent full closure of the Macbook. However, functionality is unaffected.