These are rough and admittedly optimistic estimates, but I think you can see the general trend. Even if only 50% of my estimated nearly $2M in savings is realized, that averages out to close to $200,000 per year. (Out of a $1.2M budget.) I am not suggesting reducing tech budgets by this amount, but I can sure think of a lot more interesting things (like kids' computers, a more robust wireless network, and more bandwidth) to spend tech dollars on.
Yes, I need to pay $7 a year per administrative, possibily teacher, e-mail account for archiving and retrieval. Not bad, though, considering.