My current preference for OS X as my home "on the metal" base OS is that it allows me to run EVERYTHING else in VMs if I wish. If I had any other hardware, I wouldn't be able to run OS X when I need to, and I find Apple hardware quite reliable and long-lasting. Which annoys me on principle. Apple strong-arms VMWare and the other VM guys into not allowing OSX to virtualize on other environments and they end up benefiting from it, as in your case, when I would have preferred that to come out as a loss for them. This annoys me (plus I don't really like having to use their UI on the host).
Yeah, given my druthers, I'd run the VM host software (I happen to like VMware) on Linux, and virtualize OS X along with everything else. But I'm not highly motivated to acquire another hobby (i.e. supporting a Hackintosh VM). Easier to deal with the overly-friendly and somewhat restrictive OS X GUI.
At work my workstation is CentOS, and I use Xen as my VM host software, which is great because I can do all the VM client management from the command line, and thus manage things remotely (e.g. over VPN) with just a terminal.