Quick Ship Electronics via eBay offers the open-box Apple iPad Air 2 128GB WiFi Tablet in Space Gray, model no. MGTX2LL/A, for $499.99 with free shipping. That's tied with our June mention as the lowest total price we've seen for this 128GB model. (It's also $135 below the best price we could find for a new one.)
A 1-year Quick Ship Electronics warranty applies.