I'm not suggesting that the college textbook market has been designed by moustache-twirling evildoers, just that we should look at, as you say, the observable dynamics in the system. Regardless of market dynamics I think it's immoral to restrict academic knowledge to those who can afford it, when it can be distributed at 0 marginal cost.
Definitely. I believe amazing things can happen the more we make the collective knowledge of humanity accessible to all. Thankfully, I think we are moving in that direction.