See http://fedora.redhat.com/docs/release-notes/ and grep for "rhgb".
I read these pages upon pages of notes, being somewhat new to Linux, I guess I just didn't know what I was looking for as I don't see anything there to help me.
Not to worry, Randall... I've been around Linux for a while now, and I couldn't find anything in the release notes to answer your question either.
Did you miss the part where it said "Graphical booting is controlled by the GRAPHICAL line in the /etc/sysconfig/init file; set it to "no" to permanently disable graphical booting.", or do you feel that this does not answer your question?
Setting GRAPHICAL to "no" will disable rhgb, giving you the standard console boot messages, which is practically the same as "show details" in rhgb, it's just less pretty.
