People do like paper textbooks a lot. But the used textbook market is as efficient as ever and publishers want more revenue. They don't make any money when you

People do like paper textbooks a lot. But the used textbook market is as efficient as ever and publishers want more revenue. They don't make any money when you buy a used textbook and it's expensive to scramble the chapters and end of chapter questions and reprint every other season. Plus, you have to pay all the sales people to convince the clueless professors that they should upgrade to the new edition each year. Perfect example of rent seeking.