Move, or reinstall new?

[Tim Wunder]

I'm currently in the process of moving a new 80 GB HDD (Seagate, 7200 
RPM, 8MB cache) into my home system (FC1, with rpm.livna.org and 
kde-redhat.sf.net add on packages). I've got the new disk partitioned, 
and I'm formatting it ext3 as I type this.
I'd been planning just to move everything over (/, /usr, /home and 
swap), but now I'm thinking I may want to start with a clean install. 
/dev/hda, which the new drive will become, was used for a fresh install 
of RHL 8.0, but has since undergone a great deal of change, not the 
least of which was an upgrade install of FC1.
Anybody have any good (or half-baked) reasons why I'd want to do a fresh 
install of FC1 rather than to simply move my existing install over to 
the new HDD?
(And no, Collins, I'm not gonna install GenToo...)

Tim