I'm guessing you haven't dealt with the spiral-bound, Kinkos-printed "text" written by the professor, sold for $75, and updated every semester to prevent resale?
My wife had two of these every semester for her last two years of college.
My wife had two of these every semester for her last two years of college.
I'm not denying that black sheep exist, I am denying a pervasive conspiracy of "big textbook" to the benefit of the professors.
Also, an easy solution to not everyone buying Kinko-printed spiral bound lecture notes easily comes to mind...