This is awesome, well done! I hope more school systems do intelligent things like this. I also hope that educators pass on this stripped down model. Why save 10% now and make kids suffer with a computer that will be slow and nearly obsolete a few years down the road, making them suffer for years to come?. Classrooms don't update computers until they're run into the ground three times over, so it makes more sense to invest in something with some longevity.
I don't understand what's not 'intelligent' about being innovative and providing new educational opportunities for students? I also don't 'suffer' with my 5 year old Macbook Pro, which still runs great on current software. That's actually the good thing about Macs - old hardware DON'T become obsolete like PCs. Instead of looking at it from a cost-saving point-of-view, I think it's better to look at it sort of as an HR recruiting tool to encourage students to learn. Imagine this scenario, if a parent is considering which school to enroll his child, he visits School A's computer lab and see a bunch of PCs and School B full of Macs...
<parent> "Hum, this school is probably conservative. Those PCs look like the ones at my work. OMG...Are they still using Windows XP?"
<parent> "What a nice modern computer lab. It's really good to see schools investing for better education."
<kid> "Wow! I have a Mac/iPhone/iPod/iPad at my house too. I love this school!"