An interesting article on the economics of high school sports:

In tennis, as in all of its 24 championships, the Ohio High School Athletic Association is known for its crisp operation. Large attendance at its marquee football and boys and girls basketball finals allows the association that regulates 828 high schools to spend about $11 million per year on its state championships.

That number dwarfs even comparably sized states, which make much less than the $15 million in revenue that OHSAA earns from its championships.