I agree with your point but I think it's important to use more realistic numbers.
According to [1] the average tuition numbers are closer to the following:
$10k public in-state,
$25k public out-of-state,
$50k private
In my own personal experience at a large public university, only freshman-level classes have on the order of hundreds of students. But even supposing the average lecture hall contains ~40 students paying ~$20k per year each, that's about $800k per year. Maybe each student has 4 classes, so there's about $200k for each course. Let's say the professor teaches two classes, taking a generous salary of $50k per class. That leaves ~$150k per class unaccounted for! Not as outrageous as your $34M number but still quite unacceptable.
According to [1] the average tuition numbers are closer to the following:
$10k public in-state, $25k public out-of-state, $50k private
In my own personal experience at a large public university, only freshman-level classes have on the order of hundreds of students. But even supposing the average lecture hall contains ~40 students paying ~$20k per year each, that's about $800k per year. Maybe each student has 4 classes, so there's about $200k for each course. Let's say the professor teaches two classes, taking a generous salary of $50k per class. That leaves ~$150k per class unaccounted for! Not as outrageous as your $34M number but still quite unacceptable.
[1] https://www.valuepenguin.com/student-loans/average-cost-of-c...