Read other letters about this article
Like most things the cost of an item is dependant on many factors. I would like to own a Mac, if for no other reason because I like computers (I have 3 laptops and a desktop). I have toyed with buying one for years, but I write software for the PC. The real cost for me would be buying Mac software. Photoshop, Pro-tools and office alone would cost more than the computer. I have not looked into it recently, but there is also the problem of trying to manage SQL Server through a Mac (which I would guess is nearly impossible).
At the end of the day, I see the Mac as begin slightly better than the PC (a lot better in some areas like graphics, video and sound editing), but not worth the extra investment. However, if I was buying a computer for my retired parents to check their email and do fun stuff, I would buy them a Mac because I know it would just work, but stop trying to convince anyone it is cheaper.