In surveying one classroom last year, he asked a student what he thought of using a Linux desktop vs. a Windows desktop, and the student responded, "Who cares?"
I find that quote telling, the kid doesn't care. I would love to have the ability to figure out what it is like to grow up one or two generations below me, pushing doorbells with your thumb, etc. Unfortunately, I can't (but see the Mindlist List for a few hints...) . However, I'm guessing it's like using a telephone for me. I don't care about who makes the phone, the color, even features aren't a big differentiator. It's a thing, I talk into it. End of story.
I've said before that just switching from Windows to Linux is not a super green thing to do, because you still have the identical infrastructure. Nor am I convinced that soaking the school districts (or, for that matter, world) with gobs of computers is really 'sustainable', or necessary. However, I do see an advantage to saving on maintenance dollars, and it appears that Indiana will be saving almost $100 million a year in licensing fees. And I bet that's a nice round number that some people do care about.