Classic. When I was at UCSD (also a long time ago), I had the privilege of taking a course from a professor who used his own $70 textbook, then "taught" by rea

Classic. When I was at UCSD (also a long time ago), I had the privilege of taking a course from a professor who used his own $70 textbook, then "taught" by reading it in front of a whiteboard. Undergrad tuition was also going up 20-30% per year at the time, for something that could only charitably be called "education." There's very little excuse to create new versions of a calculus textbook. My decades-old Thomas still works just fine.