>Got any good reasons? Let us hear them....
There really aren't any other good gui disk tools available
(without messing around with QT, lib<blah>, etc required to get things like partgui, or qtparted running.
Currently I maintain a Linux rescue disk (search for it on freshmeat) and boot to that if machines need to have their partitions messed around. The possibility for 'fat-fingering' a wrong partition table using parted / fdisk is rather large, *especially* for the 'knows-enough-to-cause-damage' administrator who's more your clicky sort than your cli sort.