My Nook First Edition will get me $50, as will my SimpleTouch (although, it’s not working…sigh). They also accept non-Nook devices, like Kindle, iPads and iPad Minis. I probably won’t be trading in my iPad 3rd gen (64gig) WiFi since it still works great, and I’d only get $100 for it.
If I had an iPad 1 or 2, I probably would trade that device in. One of the questions I have, though, is: Can I trade in more than one device to get it for free? Sounds like it!
Update: Only 1 device per trade-in. Sigh.