$375 per box doesn't seem bad to me at all when you probably only need a couple per school?
This is the obstruction to using them in an educational setting. If they were available for $600+ each but already completely built (minimal DIY), they would be more likely to get into (some) schools.
Just needs motivated teachers, if you ask me. I assume the mothbox is more of a high-school project, building one seems on that level as well.
Def just needs motivated teachers!