CowBoom offers the used Apple iPad Air 2 64GB WiFi Tablet in Black/Space Gray, model no. MGKL2LL/A, for $399.99. Coupon code "AIR29315" cuts it to $299.99. With free shipping, that's $175 under last month's mention of a new iPad and the lowest total price we've seen. (It's currently $243 below the best price for a new one.) Deal ends September 3.
Note: No warranty information is provided, and this item may have minor scratches and/or be missing accessories.