Okay, so I have a Macbook from one of the earlier batches. Bought in the End of May I think? It's SLIGHTLY discolored on the wrist pad areas and the button on the trackpad is discolored as well. Slightly by meaning, in certain lights and angles you can certainly see a slight almost pinkish brown staining. I called AppleCare and told them about it and they are sending me a box to send it in for repair. However, do you guys think a minor staining warrants a problem great enough to send it in? I don't want to lose my computer for a week for them to tell me that it's typical wear and tear. I've tried cleaning it. (Magic eraser and Alcohol) Thanks for any suggestions.