powering off does make sense!
with the advent of the LCD monitor, power consumption by monitors has dropped substantially, in fact an investment in a LCD monitor to replace a CRT monitor will probably pay for itself within 2-3 years or sooner based on power cost savings alone.
PC's do use alot of power, power hungry cpu's, hungrier video cards, motherboard fans, power supply fans, faster harddrives & faster optical drives and every other device installed in that pc uses power, alot of it. Don't fool yourself into thinking that pc's are energy efficient machines. There is a reason those machines get hot! Plus that heat can have deteriorating effect on the pc's components. These pc's all have power buttons, use them!
You may be using defrag commander to schedule defrags but couldn't you just have users leave their machines on friday evening when they leave for the weekend so that you could accomplish your mass defrag via defrag commander plus push out whatever windows/office updates are required by your workstations and maybe even schedule virus/spyware scans during the weekend when users are not likely to be using their machines?
It just seems like a lame excuse that you need to leave the machines on during the week so that you can defrag them.
There are other ways to do things, you just have to be willing to do them. PC's use alot of power, becoming energy smart & more efficient will ultimately save you alot of time & money. Who wouldn't want that?
