Well... most machines have reboot handling where they do not cut power
to disk drive. That means that shutting down their hdds would
unneccessarily wear their drives.
...while we unneccessarily wear *your* drive :-(.
How common are notebooks that cut power to disks during reboot?
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(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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