Question: Why do we do installs on Hackintoshes?

I've always wondered why we, generally speaking, do installs on the Hackintoshes themselves. It seems as if we're figuring out how to get Mac OS to run on our hardware twice - once to run the installer, then another time to run the OS itself.

None of the common how-tos encourage what seems to be a simpler idea - do the installation and all the updates on a real Mac, then make an image, then try to get that to run on the Hackintosh.

An installation can take quite a long time, and each set of updates take time, too, so if we end up doing several installations, all that time adds up. If I take a clean image and write it to disk, then run MultiBeast or something like that and it doesn't work, it's much quicker to reimage the disk than to do a new install.

Thoughts?