Amazon offers Prime members the used Amazon Fire 7" 8GB WiFi Tablet in Black or Magenta for $28.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping costs $6.98.) That's $21 under the lowest total price we could find for a new one, although we saw a used unit for $3 less in November. It features a 7" 1024x600 touchscreen display, 1.3GHz quad-core processor, 8GB internal memory, front- and rear-facing cameras, 802.11n wireless, Bluetooth, and Fire 5 OS.

Note: No warranty information is provided. This item may have small scratches, blemishes, or other exterior imperfections. It's currently backordered, but is due back in stock on March 28.