The other best part about imaging is that it saves the most time on slower, older computers. When I do installs, I tell people I can sit hit for 8 hours installing a fresh copy of pro, updating it, installing your software, drivers, etc PER COMPUTER. Or I can make one image on my fast computer in <2 hours which is driver agnostic and reformat all of your computers to they are ready to go once the reformat is completed. So far everyone has preferred that to doing computers one by one.
This usually saves me in the end too as they end up wanting to add 2 or more computers after the initial install.