My Effective Interpersonal Communications text is $80, published last year, no used in this edition. You can consider my effective interpersonal communications to have been enhanced by that revelation. with slight buyers remorse I checked out Public Speaking. That text is $120, same issue. Also that's one of 3 books. Whew, dodged a bullet there.
So, my old habits are coming on strong and I'm thinking of how to liberate said book from some repository.