I may be getting older but I get the impression that the vast majority of coursebooks appear to be identical, heavily focused on exam type questions - even from elementary levels- and lack imagination and creativity. The publishers complain that the cost of a coursebook is exhorbitant and they have to cater for the market's needs if they want to survive. The authors state they are restricted by the author's brief the publishers send them and they cannot deviate.
Are you happy with most coursebooks? Do they really cater for your and your students' needs? If you met a publisher and an author what would you tell them?