A good approach if all you have on the drive is the OS and some
documents, but if you have three DAW programs, a bunch of plug-ins, a
web browser, a mail program, an Office program (with associated
directories where they expect to find stuff), and a pile of utilities
that you never remember you had until you need one, there's a mighty
good argument for not having to re-install and re-configure
everything.
This was my thought also.
John A. Chiara
SOS Recording Studio
Live Sound Inc.
Albany, NY
www.sosrecording.net
518-449-1637