I bought a Mac, because I was sick of XP slowing down and Vista, just wanting every bit of system resource I have.
Mac's, in my opinion, are better, because they come with all the 'programs' you would normally need to download on a PC (PDF Viewer, Good web browser, iTunes, drivers...ect...). This means you are ready to use it straight away.
Another reason is because of virus'es, or the lack of them. No need to pay for an antivirus, which takes half of your ram.
Also it is the customer satisfaction rate is very high. I havent met a person unhappy with a Mac. And I certainly am not with mine. Mac's are much stabler than PC's, due to the fact that the Operating System is based on UNIX and that it is all designed for the hardware you get in a mac. You get a PC, and install Windows, there are all-sorts of driver conflicts making the Operating System unstable. You dont get that in a mac, my mac has only crashed a program twice and I've had it 6 months.
Fully 64bit now with Snow Leopard. Windows are still releasing 32bit versions of windows.
Mac's last longer. You can buy a PC, own it for around 2-3 years, before your Operating System becomes obsolete and you have to buy another, due to the new system requirements of the next Windows. With the exception of the recent drop of support for PowerPC and 32bit, OS X works on a wide range of Mac's. You buy a brand new Mac right now, and Im willing to bet it could last up to 5-7 years. Possibly even 10, because software manufacturers are still making apps for Tiger.
Support for a Mac is amazing. I had a problem with my iPod and iTunes, I called up Apple Product Support and the kind female on the other end guided me through my problem with ease. Microsoft and support dont fit in the same sentence together.
If you are new to Mac's, it may take a while for you to get used to, and it may seem a challenge at times. But once you are used to OS X, you realise how much easer everything is and actually how much hassle Windows gives you nowadays. Is it your computer or are you it's human. With OS X, it is certainly your computer.
And let's just have one more dig at windows before I finish. Let's be honest, the fact that the majority of Windows users are using an operating system that is 10 years old now (XP) just says enough about Windows.
Hope I've helped.
