Dude.. You get a lot more for your money with a PC, and Macs have very little third party support. Try finding a decent game or business application for a Mac: you have a lot less choices to pick from when it comes to the Mac format. Lastly, you can't really build your own Mac. As a friend of mine puts it, "never trust a computer you can't gut for parts."
Macs are great if you have the cash to spare, you don't mind having less programs to work with, and if you aren't very computer literate. They're very user-friendly compared to PCs, but if you're into any kind of IT work, or if you want to play the best and most visually impressive games, then you're gonna need a PC.
(Hijacking threads can be fun, see? 😉 )