CowBoom offers the used, 1st-generation Apple iPad 16GB WiFi Tablet, model no. MB292LL/A, for $279.99 with free shipping. That's the lowest total price we could find, although we saw it for $10 less last week (since expired). Sales tax is added where applicable. This 0.5"-thick tablet weighs 1.5 lbs. and features an Apple A4 1GHz processor, 9.7" 1024x768 LCD touchscreen display, 802.11a/n wireless, Bluetooth 2.1 + EDR, accelerometer, compass, up to 10 hours of battery life, and more.

Note that no warranty information is provided. Also, this used item may have cosmetic blemishes and missing accessories.