When RHN came out with version 8, I saw the writing on the wall which was confirmed with version 9 and the announcement that RedHat would no longer be available as a freebie. RedHat was trying to become the Microsoft of Linux as far as I was concerned. My take was that they cut themselves off from the rising generation which would have embraced and supported it.
At it’s best, Fedora wouldn’t both let you choose which packages to load and be portable from one system to another on a removable hard drive like RedHat. The latest version of Fedora makes Ubuntu look smart, but not as smart as Mandriva. (I’ve always preferred KDE to the Gnome environment.)
I’ve heard of (but not searched out) mirrors where it may be possible to download RedHat 10 (or later) images as freebies.