I have to admit, I considered building a Hackintosh. But after reading around, nobody running a hackintosh can say its as stable as a Mac. A quick Google for "stable hackintosh" (without quotes) reveals (at least in the top 3 listings) that people don't find them to be very stable.
If I'm going to spend that sort of money, I expect a stable product.
A hackintosh will be louder, uglier, unreliable, unsupported, and no where near as environmentally friendly as a Mac
Trust me, I went back and fourth, priced up, everything -- its just not worth it.