Why does the Pentagon pay $400 for a toilet seat?
Because of bad, post-17th Amendment ratification trade deals for the last 70+ years, working parents are probably too tired at the end of the day to concern themselves with what alleged bribed school administrators are paying for school supplies.
“Why does the Pentagon pay $400 for a toilet seat?”
With the toilet seat you get comprehensive documentation that it will do its designed function (and if it is going on a plane that documentation is not cheap). Public schools don’t offer nearly the same guarantees.