Today only, Staples offers the Apple iPad with Retina Display 16GB WiFi Tablet in Black, model no. MD510LL/A, or White, model no. MD513LL/A, for $399 with free shipping. That's tied with yesterday's expired mention and the lowest total price we've seen for a new unit. (It's a current low by $50.) 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, up to 10 hours of battery life, and iOS 7.

Of note, Staples also offers the 32GB version in Black, model no. MD511LL/A, or White, model no. MD514LL/A, for $499 with free shipping. That's alto tied with yesterday's expired mention, the best price we've seen for this tablet, and a current low by $45.