RobertsCamera via eBay offers the Apple iPad with Retina Display 64GB WiFi + 4G Tablet in White, model no. MD527LL/A, for $539.99 with free shipping. That's the lowest total price we could find by $73. This 9.4mm thick tablet weighs 1.4 lbs. and features a 9.7" 2048x1536 Retina display, A6X dual-core processor with quad-core graphics, 5-megapixel iSight camera with 1080p video recording, 1.2-megapixel HD FaceTime camera, voice dictation, 802.11n wireless, Bluetooth 4.0, Lightning connector, up to 10 hours of battery life, and iOS 6.