Walmart offers the Apple iPad with Retina Display 16GB WiFi Tablet in Black, model no. MD510LL/A, or White, model no. MD513LL/A, for $449. Opt for in-store pickup via Site-to-Store to avoid the $4.97 shipping charge. That's the lowest price we could find by $44, although it was briefly $24 less a week ago. It's 9.4mm thick, 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, and up to 10 hours of battery life.