Apple is ahead of the game and that's all there is to it to be honest, you CANT get a virus on a mac, it runs faster, it's way more user friendly, and it's media capabilities blows everything else out of the water. I've had my mac book pro for close to 4 years now, and I've never had any reliability issues or problems, other than needing to replace the old battery. If you want to buy an $800 pc go ahead, but 4 years from now, you'll be in the same boat!
Lets put it this way, Apple stock is worth more than Intel and Microsoft combined, there's a reason for it, everything they make is unbelievable, and any compatibility issues or software problems that people have had 10-15 years ago with apple products are pretty much out the window today. A lot of people are stubborn and stick with PC's because it's what they've used in the past, but once you go MAC you see a huge difference, and you don't go back.