We had an economics professor that had a $110 textbook with tear-out homework assignments that needed to be completed in pen.
He said that he did so in order to make sure the publishing company would keep printing them, intentionally and openly ensuring there wouldn't be a used book market. His justification is in the syllabus here https://economics.byu.edu/Documents/Syllabi%20-%20broken/201....
Looking back, and having printed a book, I'm 99% sure that's BS. Or, at best, you could print the book much cheaper yourself.
He said that he did so in order to make sure the publishing company would keep printing them, intentionally and openly ensuring there wouldn't be a used book market. His justification is in the syllabus here https://economics.byu.edu/Documents/Syllabi%20-%20broken/201....
Looking back, and having printed a book, I'm 99% sure that's BS. Or, at best, you could print the book much cheaper yourself.