Uh, what do you think Fedora (and CentOS to a lesser extent) is for?
When I bought my copy of Red Hat 4 back in the day, I did it not because I needed support -
but because I would've been running it anyway, and wanted to give a little back. I doubt my
$40 made a huge difference in the scheme of things but that's fine. And I'm sure if you gave
Red Hat a bag of gold and said "desktop us, right now" they'd happily do so. They simply don't
currently see a market for throwing shrinkwrapped boxes on the shelves right now, and I don't
blame them.