Amazon offers up to $320 in Amazon credit when you trade-in a used, fully-functional Apple iPad 2 16GB WiFi Tablet. You can then later use that credit to purchase the newest iPad for $179. (However, as of this writing, Amazon is not selling the latest version of the iPad except through third-party merchants.) Even so, it's the best trade-in value we could find on the iPad 2. (For further comparison, Gazelle.com is currently offering a $260 trade-in value on that those models.) Other trade-in values are also available at Amazon:

• Up to $500 credit for the Apple iPad 2 64GB 3G + WiFi Tablet
• up to $445 credit for the Apple iPad 2 64GB WiFi Tablet
• up to $420 credit for the Apple iPad 2 32GB 3G + WiFi Tablet
• up to $390 credit for the Apple iPad 2 16GB 3G + WiFi Tablet
• up to $375 credit for the Apple iPad 2 32GB WiFi Tablet