What does Apple do with all the scuffed iPhones that have been returned? I suppose they don't try to resell them in hope that the next person won't notice the scratch or scuff. I figure it can't be very easy to refurbish them since you can't really repair or even replace the aluminium cover easily. Reusing the components is of course an option but most likely a pretty costly one considering the logistics and all. Any educated guess on what Apple or companies in general do in these situations?