Apples a good product. They are solid and you dont have many errors with them. They are great for doing design and production, but can be used for regular users as well. I have one and I love it. Its just solid.
PC's are great too, but the operating systems on them can suck. We all know windows XP and even though its so old, everyone uses it. Why? Because its stable. Vista came out and that was a joke. Windows 7 is not bad, but it is a resource hog. Uses a lot of memory and can cause a lot of problems still.
Apples are expensive because, its apple.. its the brand. You get what you pay for though in my opinion. I will never buy another PC laptop after having my apple, but at the same time, I am not saying dont get a PC. If you want to surf the web, check out pictures and videos, play games, etc.. get a PC. Macs work fine in that regard but they are expensive.
Also, mac's can have programs that are a little different. You can get Microsoft office on a mac but mac's have their own programs like open office (also available for PC) and iwork, ilife, etc.. Something to get use to.