Mac produces some great stuff, but the prices are huge. I was thinking about purchasing a new laptop 3 months ago and really took a MacBook into account, since many designers rave about it. One that would work to my specs would be more than 2000 USD. I got an HP Pavilion at 1/4th of the price. The remaining 1500 USD I can use for something else.
Depends on what you need them for macs are easier, and harder to break. Pc's are good for more applications and more compatible with software,but you can get a php exploit or a virus just by going online without anti virus D: