I use courseware a lot. One of the reasons is that I can use it as a canvas where I can embed background images, put an audio button on top of the image to make it clickable without coding.
With the new interactive book, we have the potential to create some really interactive content, in courseware page,
I have also embed recorded screen video as a help button, to show students how to play the game. The courseware page is sort of like a canvas page where I can mix different assets or content type together to create something more interesting. I wish I can just copy a single page of courseware and paste it into the interactive book. Imagine that possibility!