With all the new super-thin mobile devices, Macbook Airs, etc. where everything is soldered together and nearly nothing is user-replaceable anymore, I have the following question: Is Apple actually repairing defective hardware or just replacing it? Let's say there is a malfunction on your Retina Macbook Pro's RAM. Or chip XYZ on your Macbook Air is not working. Or the iMac's GPU is dead. You bring your iDevice to the store. But what is happening? Do they really repair the stuff, i.e. replacing single chips or other eletronic parts? Or do they just throw away the whole thing, since miniaturization makes it impossible to repair stuff? The logic board of the Macbook Airs for instance is so small, I cannot believe it is possible to repair things by human hands .. Being unable to upgrade/repair your new generation iDevice is one problem. But what about the environment?