It's been a long time since I've posted. I work for a new company now. Still use a mac. Many employees have moved over to Mac, mainly after experiencing iphones and ipads. They really couldn't be happier and our IT dept hasn't had any problems integrating them into a windows network.
My wife after suffering through 3 Dell laptops moved over to a Macbook Pro last year. She's happy. One of the few times I've heard "I wish I would have listened to you in the first place.
As far as money, I don't see Apple has being more expensive over the life of the computer. Having great support and being trouble free is worth a lot. They keys started falling off my wifes Inspiron a year after she bought it. I could go on, but I've been on both sides here. Not a fanatic, just use what works the best.