Macs definitely have their prices gouged by Apple. PCs obviously have more competition from all the different vendors (HP, Gateway, Dell, etc.), but Apple is the only one making Macs, so they can jack up the prices. Most people don't even realize the hardware in PCs and Macs is almost entirely identical, save for the casing, so it's really an arbitrary price increase by Apple. Anyway, tl;dr, you definitely get a lot more for your money from a PC, as you seem to have been told by others. Not sure why that other guy said "perhaps"; if you compare identical hardware builds of a Mac and a PC the Mac will pretty much invariably be hundreds of dollars more.
The only thing that you would want a Mac for [IMO] is because you really love the OS or you want to use the exclusive programs - that's all the extra few hundred bucks will be going to (and customer service, I suppose, but I don't think Apple's customer service is anything out of the ordinary). Getting one for the programs is kind of silly, I think, considering the multitude of fantastic programs available for Windows. Logic, for example, is great, but Ableton and Pro Tools are just as great.
Oh, and there's the whole no viruses thing, but as long as you're not a dingus you should be fine with a PC.
Obviously I'm a bit biased, but I think my reasoning is still sound. I would buy a Mac for someone like my grandma or a technologically illiterate friend, but other than that they're hard to recommend.
Ubuntu is kickass as well, as the above poster said. And you aren't gaming, so you wouldn't miss out on that. You might want to consider downloading Ubuntu alongside Windows on your current PC to see how you like it. It's extremely easy to do: http://www.ubuntu.com/download/deskt...dows-installer