I’m for this 100%. I might be in the minority but I don’t like the hassle of selling my old electronics on eBay, Kijiji or even directly to someone else. I might not get the best value for my old iPhone by going to an Apple Store, but I’m willing to make the trade-off for the sake of convenience. It’s something Apple is extremely good at when it comes to their overall purchasing experience.
Update: 9To5Mac has confirmed it, starting today, though it seems only in the US for now.