Haha......Vista to XP a "downgrade"? Good one.... :P Maybe
a sidegrade...but definitely not a step backwards considering
the multitude of incompatibilites with the new OS, and
the normal MS bugs that will require a lifetime of updates
and service packs just to get us by until the next time.....wow....deja
vu anyone?

If your PC runs the programs you need it to run, and it
does it reliably, why would it matter what OS you are
running?