Good Old Gold does. I think the new item has to be $500 more than the item traded in. They also have an incredible lifetime buyback policy, too. I think it is 75% of the purchase price minus shipping. It would be sad to think this would ever be used, but I think we do see it happen.
I don''t know what you are looking for, but I wouldn''t rule out GOG without talking to (or emailing) them about your specific situation........they may be more flexible than stated in their general policy rules.........