If you didn't know CentOS = RedHat. The CentOS people just take the RedHat sources and recompile them to make CentOS. Since it is RedHat you can install Oracle, WebLogic, NetBackup, or any other enterprise software on it without having to jump through any hoops.
I totally know what you mean. I like to do everything command line so that I actually know what is going on and document it all. For a while now I have been threatening setting up a wiki online and just inviting a few friends to it to start putting documentation together on some of the stuff that I have done. Did you see Linus Torvalds comment about OpenBSD users recently?
"Security people are often the black-and-white kind of people that I can't
stand. I think the OpenBSD crowd is a bunch of masturbating monkeys, in
that they make such a big deal about concentrating on security to the
point where they pretty much admit that nothing else matters to them."