I'm sorry that I completely ignored Apple. Although I am not sure I would consider someone buying an iMac (or any brand name prebuilt desktop system) to be an 'enthusiast.'
* It does give pretty decent performance (notably, it outperforms the new Mac Pro on some workloads)
* It looks attractive
* A prebuilt OS-X system means less futzing around with drivers etc
I don't play games (beyond the occasional Minecraft session with my son) and I'm not particularly price sensitive. I've built (many!) of my own computers, going back to a 386DX40, and I'm happy to do it again if I see a good reason. But at the moment I don't.
Desktop computers that seem attractive to me at the moment:
This came off as much more judgmental than I intended, especially towards Apple which I respect as a company and whose products I admire from a design and integration perspective. I was also not trying to belittle Apple fans or customers of any of the other big name manufacturers.
I also really like OS X. As a FreeBSD user for many years, seeing OS X be successful is even a little gratifying because I know there's a lot of cross-pollination going on behind the scenes. I'm not a mobile/laptop kind of guy, but did use a MBP for a couple of years and it was without question the nicest laptop I've ever used. If I were to buy a laptop today it would probably be a Macbook Pro.
I've been building computers from parts for 30 years. I enjoy the research, part selection and construction aspect of the process. I like that I can go into the process with a specific set of criteria and come out with something that satisfies them exactly or, barring that, that I'm in control of the compromises. I like that if these criteria change or I find I made a mistake (more likely), I can just swap out a part and continue on. This is possible with most of the name-brand PC desktops, less so with the Apple products, but I like building it all myself the most.
Also, as a FOSS user, it's typical for hardware support to be an issue. Sometimes it feels like various industries either do not care about me as a user or actively want me to suffer; constructing a modern PC that doesn't have support issues is a challenge that brings a small amount of satisfaction when overcome. I understand if people think this is silly.
So, I consider myself an enthusiast. Given this explanation, hopefully my original comment makes more sense.
