Actually that black market is already growing, and quite large, and quite good.

Look into the group that Mr. "3x5 card of allowable history" Tom Woods is working with.
Some of the best teachers giving their best lectures.

I would like to shout at everybody
GET YOUR KIDS OUT OF GOVERNMENT SCHOOLS!!!!111!!1!

However, from my perspective, parents are starting to notice the tip of the iceberg with this CRT in classrooms. Its only a matter of time now.