I do hope the kids can retain any enthusiasm for using the RPis after the course is over, otherwise it might just sit on their shelf doing nothing. That's a bit pessimistic, I guess, but I definitely went through seasons of ignoring tech toys I'd been so excited about initially.

+1 for being able to break things, though. I know I'm way more likely to try risky (and educational!) maneuvers on a spare computer than the one I have to use for (home)work, assuming I even have one.