So long as I have the tab key that will be a considerable advantage over the CLE.
I have setup a dual boot CentOS 6 host on my machine and I like your idea. Worked alot with Xen on Suse but never really touched KVM. Using KVM hosts and guests will kill two birds with one stone. Anyhow I purchased the book off Amazon.... Usually takes around 4 weeks to arrive in Australia. Whats the go with all the repositories plonked all over the show? With Nvidia, ATI etc. I use to get them all from Novell. With Debian most stuff can be acquired directly from Debian. With CentOs the base seems to be consolidated from Centos but all the other addins I google and get random repositories to acquire them from. Sure enough they provide me with what I want in the way of drivers & other software but I have no real idea how they all fit into the Redhat/Centos space. Random organizations manage them? Doesn't that defeat the purpose support for open source software if one needs to include RPMs from other 3rd party repos?
Im going to take my time with this one and not sure if they close old forums or not but I might put on my review of CLE and RHCE and discuss which one is more difficult with out divulging what is in either of the exams.
In my view these are the two best certifications you can get in the Linux world. The RHCE is better overall because (with the exception of some parts of Europe) there is more market demand for Redhat over Suse.
The CLE still managed to get me my current new job and we have no Suse here at all.... Lol - aside from my Linux desktop