It's not the students that are paying to be taught, it's the teachers/schools that are paying to reduce (or perhaps refocus) the teacher's workload. Instead of coming up with lesson plan from scratch, the teacher can start with something usually better than they would have come up with on their own, and spend their time tailoring it to the strengths and weaknesses of their class, or even specific students. Or maybe they can spend more time giving feedback on students' assignments.
I'm just dumbfounded that we in the software community, with all of our tools for sharing knowledge, and buying apps, would have any problem with this.
Tools that share knowledge are inherently good. Creating an efficient marketplace for knowledge transfer is good. Allowing a mixed for-free, for-pay market is amazingly good.
