Hello. On my almost 3 years old SR MBP (with silver keyboard), I do not have any problem with the keyboard except the 'A' key. Suddenly, I noticed a few scratches on it. Moreover, the paint seems to have worn off. It is like dark smear on that key. Maybe somebody at the service center did something stupid. Anyway, I don't have it anymore. I ordered a new MBP 17". It seems that the keyboard of the new MBPs are the same as those in the previous unibody generation. Do the keys on this type of keyboard get worn off? Do they get scratched easily? I wonder if I should buy a Moshi Clear Guard Keyboard Protector. Thanks.