I finally switched last year. Love mine. I switched after 3 failures of "Top Brand PC's" within 2 months. I couldn't afford to spend all of my time with customer support.
My Mac runs windows... I think one turning point for me was when a supervisor from Microsoft called me to ask me about a software product I bought and had called customer support. This was a followup to see what my experience was like. I told him I was likely buying a Mac because of my issues. He said he had one and Loved it. He also said most of the people he worked with had a Mac.
Part of the thing is in the Northwest, I can take it to an Apple store if I ever need. Great customer service at those places. I know there's one or 2 in Portland, Boise, Spokane and Seattle. All are about 3-4 hours and I am in this areas a lot.
My experience with Apple started with my iPhone. I use it and I tell people, "My iPhone is more dependable than your PC."
Another factor may be how much you use it, put on it and what you are trying to do. If you aren't doing much, maybe a PC will work. But, I Love my Macbook Pro.