Whatever works for you
I've come close twice to switching to PCs when I've needed a new machine and going through a period when I'm not exactly holding folding. The reasons for switching are obvious and all involve cost; cheap kit, cheap (really filthy cheap!) games etc etc. On the first occasion 10 years ago I decided not to largely because I just found windows unusable for the type of work I do (photography/graphics), just bit the bullet, shelled out and when the new machine was up and running breathed a sigh of relief at a near miss.
In 10 years since I've used windows a lot more, mainly troubleshooting for those who can't do it for themselves, and still never really got to like it. Six months ago I decided my 6 year old powerbook really was too long in the tooth, but lacked the wonga to replace it with another mac. I bought a decent PC laptop for a fraction of the price, really to use for web work, configuring various systems for clients who use PCs and configuring/flashing the seemingly endless number of devices that require windows for such things. The machine has Vista, which seems at first sight to be a great improvement on its predecessors - I say at first, because it quickly becomes clear that it's a thin skin putting a largely cosmetic gloss on the usual pet hates about windows that remain seething below the surface.
But I bought a shed-load of games for it which it runs very well, it does the work related stuff well enough and doesn't seem to throw inexplicable fits too often. So once more I started thinking of throwing the Mac money I didn't have at a much more capable PC as a primary tool to replace the Mac, and almost managed to convince myself I was happy with the idea.
Then a plump little job turned up and poverty (relatively) disappeared; within 24 hours I was the owner of a Macbook pro and continually giggling rather manically at how close I got to serious PC ownership. With an honest appraisal, there really is just no comparison if you just want to get on with it, without having the OS pepper you with either patronising or inexplicable error messages that end in ".dll", and have no serious interest in learning what the fuck a registry is or why you should spend so much time on it. But really it's the simple things; creating a new folder with an easy to remember shortcut, having external drives mount intuitively on the desktop, opening a link in a new tab Firefox without having to right click. The Leopard OS is simply more pleasant and intuitive to use and just looks better.
Going on past experience the Macbook will far outlast the PC, although in cost terms it would probably be an even match. Upgrading the OS costs far less on a Mac and most of the apps are the same price on each platform. I'd like to give Linux a go if it wasn't so much of a fiddle, and I am certainly not wedded to the apple logo on the hardware; if you could run Leopard on PC hardware without the grief, I'd happily save the cash. But you can't. And I still have the PC for games and other PC stuff.
It comes down to using what works for you; if you're used to using windows, you probably get more out of it that you would a Mac, and kudos to you. I have no idea what goes on in my system folder, by and large, and have no real need to which works well for me since I just want to get on with other things without HAVING to know. 90 percent of those I know in my industry also use Macs for much the same reason - you don't need "you can't do that but I'm not going to tell you why" messages with a deadline an hour away.
@Abdul Omar - PC users may well hate Mac users, but we all unite with Linux users to despise creative directors (parasites) "branding and marketing communications agencies" (collectives of parasites) and those who describe themselves as pieces of computer hardware (brainless parasites) all of whom are definitely "ark B" material. Our perceptions of you are indeed measurable, but I very much doubt you could alter them, except perhaps in a direction that might cause an uncomfortable itch in your goatee.
Paris - way more brains than any creative director.
on the other hand, am the creative director of a branding and marketing communications agency and