Shortly after I bought my old Powerbook G4 17 inch, 7 years ago, I learned that if the hard drive failed out of warranty a replacement would cost about $500.00.
That's because Apple would rip you off on the HDD. It's just like RAM. They overcharge on that too.
As would any other laptop manufacturer, and the extended warranty on other laptops would be less money than AppleCare. Heck, some may offer to come over to your home or business and repair your laptop right there for you.When I got my current MBP 17 inch a couple of years ago, I got AppleCare for it, too. It is a good thing. My logic board died over the weekend and Apple replaced it at no cost to me.I understand that the retail price for a replacement logic board is about $800.
I'm not saying that your experiences weren't positive. In fact, I'm glad you have positive experiences with AppleCare. What I'm saying is that the reasons you provided for liking Apple could have been any PC manufacturer.
Accordingly, my brother has had great experiences with Dell and Lenovo (he said Dell was better), but that doesn't mean he wouldn't get the same from Apple.
The Vaio Z is great. Like many others, the ONLY thing holding me to the Mac at the moment is OS X.