@quarkx
Honestly, I can't argue with anything you have said. And if I could be bothered, I would do exactly what you suggested: find a nice laptop which is compatible with the hacked version(s) of OS X 10.5 or 10.6 and use that. The reasons I haven't done so are as follows:
1. Software updates can break the hacked OS (whether deliberately or not...)
2. I haven't yet found a notebook I like which is *fully* supported by Hackintosh
3. On some hardware, getting Hackintosh working is a real effort
4. On some systems, OS X is reported to be pretty unstable
OS X is my operating system of choice. As much as I'd love to be able to run it on anything, I enjoy the ease and stability of running it on Apple hardware. And I'm prepared to pay extra for that. If you're not, then fair enough.
I can't comment on the FreeBSD vs. OS X business as I've never actually used FreeBSD. However, my understanding is that Apple have made fairly significant modifications and additions to the BSD core of OS X.
--
moto