I was quoted $354 trade in for my white iPhone 3GS (32GB). The unit had just come from the Apple Store as a refurb. It was in PERFECT condition. I had a white Speck case wrapped around the back since day one. It was in the Speck case AND a leather case for the 5 days I owned it. The criminals at cexchange.com claim that it has minor wear damage on the plastic backing (lie). I am extremely OCD and it was perfect. They now want to offer me $172.88. I told them to send it back and that I would be posting on EVERY forum I am on about their deceptive practices.