Heh, I like how you make a lack of alternatives seem like a good thing. :rolleyes: Macs have to be the most proprietary system out there. Which basically means, you're going to pay more. What benefits do you get out of it? Well, with a Mac you get a computer on which you must use the Mac OS. (Well, for now. This will probably change once the switch to the x86 is complete. Dual boot Windows and Mac. Linux and Mac? Who knows)
I prefer PC's. Comparing the two systems in general isn't really I good idea, you need to compare two specific systems. With a PC you have a HUGE variety of vendors. There's a lot of competition with hardware in the PC market, which means you're getting better products at cheaper prices with a wider variety. You can build a higher performing system than a Mac at a price that's equivalent to or cheaper than its Mac counterpart.
The only thing I'll say Mac has going for it is the OS. Specifically the GUI is rather nice. Nothing all that special about the rest of it. It's built on Unix, but I prefer Linux over Mac. Video and audio editing? Well, I had to make an hour long movie for my film class a while back. Used my friends PC and pinnacle, and I tell you, I don't know how it could have been any easier. You need to get a system with the hardware for it, though.
So bottom line, would you like to not chose anything about your PC, or are you strongly attracted to shiny buttons? If so, you may want a Mac. Otherwise, get a PC with your choice of hardware, software, and configuration.