Get rid of copyright generally and all of this goes away. Media doesn't need to have value. Before copyright existed, people created things for the virtue of the thing created. In that era we got the Bible, "letters to a German princess" which is the base of our math curriculum today, The Wealth of Nations, almost all of John Locke, Common Sense, The Prince (and the rest of Machiavelli), classical music. Without copyright we never had human trafficking media, rap music, Jerry Springer. The product of copyright is a compost pile of trash. Universities are going to have to provide useful material if they want to charge tuition, so you don't need text book copyright. The university business model depends on providing material. At thousands in tuition per year they will find a way to make books. Probably by directing grad students to contribute to creative commons works.