I had a bad experience with my brand new iBook 800Mhz. I bought from a authorized dealer here in Canada. I nstalled a airport card on it, and I noticed that the keyboard was not sitting proprely. It was kind of floating, when I typed, everything would bounce.... I noticed that the metal cover, insidde the keyboard, on the right side was popping up. I also noticed on the second day some scratches on the screen. I know that these scratches are supposed to be from dirty in your fingers etc... but I would not expect my keyboard to be dirty on the second day. Anyway, I took back to the store, thinking that they would replace the computer... NOPE. They would fix it and if this was not my FOULT, apple care would pay to fix it. Yes, a computer wit 3 days old, I had not even carried it, it was in my table to install softs etc...
At the end, the "fixed" the computer, and Apple care end up covering this problem. The techs found out that I was not culprit. Apple care would not cover the screen if it was really damaged (Although they clean it, I still can see some scratches, and from then one I have use a keyboard protective tissue).
I know that most of my problems are not really related to Apple Care, but with the store exchage policy. They told me that it was Apple policy not to replace the computer, but fix it.... (is that true? (iJohn, maybe you can help me here...)) Today I just went to another store and they told me that they would replace the computer within 15 days.
I am thinking if its worth it buying the extension plan for Apple Care... But since my computer had problems since day one, that would not be a bad idea... But guess where I will buy my new iMac?