Without getting into a flame war - I see that most people use macs here for a few reasons that have been stated that aren't really true. I use a PC, but I have used macs at school and friend's houses for 6-7 years. With that said...
1. "Mac's don't get viruses." False. As previously stated, coder's don't care enough to code viruses for macs (for the most part). Also, my family has had 3 computers over a span of 10 years and we have never (read never) gotten a virus. And I'm not super careful or anything - I just don't click on anything that is obviously not legitimate.
2. "You don't have to restart a mac as much as a pc." I honestly have no idea where this came from - both machines should be restarted once in a while just because it is good to give the system a fresh restart, but by all means if you want to leave your PC or mac on for 6+ months at a time, go for it. My PC is normally on for weeks at a time without any problems.
3. "It just works." Varies from person to person. Personally, it seems that whenever I use a mac it crashes on me. I will admit, my PC crashes sometimes too, but I can usually figure out why, and it doesn't happen much. I'd say both mac and pc are even in this department, but mac might have an edge (everyone says they dont crash at all...).
With this said, the mac is a very nice looking, sleek, standard, easy to use system. It is harder to upgrade, and I honestly don't understand the computer-in-a-monitor thing; I think something like the G5 with a normal tower is a much smarter idea.
I prefer the flexibilty and interface of a PC, but I do know that the mac has been the industry standard in graphics art and photoshop work forever. And it most likely will continue to be for a while, but the reaosn has changed from the mac being better to the mac being the system that everyone uses - so when someone goes out to buy a system for graphics design it is expected that it will be a mac. Both mac's and pc's will perform equally in this department. In the end choose whichever interface you like better and which features you prefer.
Also, those mac ads are 100% rubbish. This really annoys me, because I guess to an uneducated person they sound great.
Edit: Going to the apple site to listen to them I see this:
You probably need a new computer if you want to upgrade to vista. Perfect. Get a mac and live in a world that's simple, secure, and a lot more fun.
Haha. This is funny because
a) Probably not (needing new computer). To upgrade to vista on my laptop, I don't need anything. My laptop can run vista very well. To upgrade on my desktop, I need a new graphics card. Thats it. My desktop is 2 years old.
b) The apple ad campaign is based on insulting windows (kind of cheap and lame - windows doesnt have the same ad campaign towards mac), however every ad is flawed.
c) To upgrade to a new OS on mac, it is probably a lot more difficult because if you do need a new graphics card for example, you have to send the whole show back to apple and have them do it for lots of money (searching google I actually found that it is apparently not possible to upgrade - this is not verified information so I can't confirm it), or more likely buy a new computer. So their ad is actually backwards.
d) They make it sound like - hey don't get the new latest greatest from windows, instead stay with our old system because you know it. Or... just stay with XP?
Here is a reason on the mac site about why to use a mac instead of upgrading to vista (which doesn't make sense - if you don't want to upgrade to vista because of the cost of upgrading, why the hell would you go out and buy a mac??)
3. It’s simpler.
"No need to choose from the many (and expensive) flavors of Vista. Every Mac runs the same Mac OS X — with the full set of industry-leading features."
Oh great. So now we can pay extra money for features we don't need. Woohoo. Instead of being able to get the basic edition like you can with windows and save some money by not getting the features you don't want/need, I can pay extra money to get some useless stuff because there is only 1 option on what to get. At least I don't have to think.
P.S. This is not a shot at macs or mac users, but merely pointing out some common misconceptions and taking a quick rant at the apple ad campaign (sorry but its been annoying me for months and months now)