Well, my argument against that is a friend of my family decided to drop XP from his laptop onto an older machine of my cousins. Screwed up everything except file system. Got data backed up, and then got Windows Reinstalled.
Just my experience though. Don't know if it was Dell or Gateway, but it was some sort of a restore CD.
A+ Core Hardware, Software Certified (May 13 2005)
the new beast...
AMD Athlon XP 3200+ Barton running at 2.16 Ghz.
GeForce MX 4000 (mainly takes the load off the main system)
Creative Labs Audigy 24-bit sound.
Some Case from tigerdirect
512 MB Ultra DDR RAM.
80GB Seagate HDD
LiteOn CD-RW / DVD ROM drive.
currently looking at a litescribe drive at staples, due to its ability to label the CD shortly after being burned.