"I've upgraded old XP PCs to Windows 7 and I've bought
new PCs equipped with Windows 7. Either way I've found that it's
not cheap. Now, Gartner, the research company, has worked out just
how expensive upgrading to Windows 7 can be for enterprises. In one
word, moving to Windows 7 can be described in one word: "Ow!"
"Charles Smulders, Gartner's managing VP believes that
"Corporate IT departments typically prefer to migrate PC operating
systems (OSs) via hardware attrition, which means bringing in the
new OS as they replace hardware through a normal refresh cycle.
Microsoft will support Windows XP for four more years. With most
migrations not starting until the fourth quarter of 2010 at the
earliest, and PC hardware replacement cycles typically running at
four to five years, most organizations will not be able to migrate
to Windows 7 through usual planned hardware refresh before support
for Windows XP ends.""