I traded an iPad 3 64GB WiFi over the weekend. It took way too long (over an hour) and the associate had to get help from 3 other managers to make it happen.
I locked-in the $114 value last week knowing the trade-in would be dropping fast. Showed up at the store with the iPad reset and activation lock turned off. Despite showing my email, my offer couldn't be found and the process started over, ending with a $72 trade-in offer. Store manager said the email is just an estimate. I called bs and asked for a different manager since the email literally says the price is good for a week. Then they couldn't find the model number, or enter the serial number correctly, or figure out the color. Finally they somehow gave me someone else's offer and just replaced his info with my info. I walked out with a $114 gift card and a receipt (just in case that got messed up too).
Looking forward to my "new" refurbished iPad Air 2 128GB WiFi being delivered Thursday. I picked a better screen and saving $50 over the one-generation newer processor of the new iPad. It should get at least 3-4 years of iOS updates and still hold decent resale value.