CowBoom offers the used 3rd-Generation Apple iPad 32GB WiFi + 4G for Verizon, model no. MC744LL/A, for $329.99 with free shipping. That's $169 under our August mention of a refurb and the lowest total price we've ever seen for this model. (It's a current price low for a used unit by $47.) It's 9.4mm thick, weighs 1.4 lbs., and features a 9.7" 2048x1536 Retina display, A5x dual-core processor with quad-core graphics, 5-megapixel iSight camera with 1080p video recording, front FaceTime camera, voice dictation, 802.11n wireless, Bluetooth 4.0, up to 10 hours of battery life, and iOS 5.

Of note, no warranty information is provided. These used units may be missing parts or accessories and have dents, scratches or other cosmetic blemishes.