I think everyone agrees that Debians package and security update systems
are better. Red Hats installation procedure is userfriendlier, but that
doesn't explain why professionals use it. I question the claim that Red
Hat provides better support (average helpdesk personel couldn't have
helped me like (the archives of) this list have). I can't
judge the system configuration system though. Consequently, I can't
think of any reason for using Red Hat other than not knowing
Debian (or fellow employees not knowing Debian). Or have I been
brainwashed by Debian propaganda already?