CowBoom offers the used iPad Air 16GB WiFi Tablet in Space Gray, model no. MD785LL/A, for $329.99. Coupon code "Air6011515" drops it to $269.99. With free shipping, that's the lowest total price we could find for a used or refurbished model by $60, although we saw it for $20 less in November. Deal ends January 15.
Note: No warranty information is provided. Also, these are used items and may have scuffs, surface scratches, dents, or other cosmetic blemishes, and may be missing parts/accessories.