It has been six months since I bought my white MacBook. I have been very happy with it. Until a week ago, I noticed the orange stain that too many people talked about. Without having second thoughts, I brought my MacBook into the Walnut Creek Apple Store. They were very nice and accommodating. In minutes, they took care of the problem and replaced the problematic part. It also came with a clear plastic palm rest protector. I am not taking it off anytime soon.
Thanks Apple.