CowBoom offers the used second-generation Kindle Fire HD 7" 16GB WiFi Android Tablet with Special Offers for $59.99 with free shipping. That's $49 under our mention of a new unit from five days ago and the lowest total price we've seen for this model. (It's also $69 under the price of a new unit today.) This WiFi-only tablet runs a heavily-modified version of Google's Android OS and sports a dual-core 1.2GHz processor, 7" 1280x800 LCD, and 16GB of internal storage.
Note: No warranty information is provided. Also, this used item may be missing accessories and have dents or scratches.