Rewards that drive high performance Book

I learned about The International Sweethearts of Rhythm from a fictionalized account of them in Megan Mayhew Bergman's short story collection, Almost Famous Women. This book was listed as a source in her notes, so I was extremely excited to find a copy of this in my faithful city library system. It's very expensive to buy (even as an ebook), and I'm not sure why, as this is a very slim volume. In fact, I found it rather unsatisfying.

So much of the book wasn't even about The International Sweethearts themselves. It was about the racial climate in the surrounding eras, as well as women's presence in jazz. Which is not information I don't want to know, but I felt as soon as the author moved on to talking about the band.... the book was over. I wanted to know so much more! I wanted anecdotes, stories! There were barely any, really. I wanted more... I don't know! Something! Anything! (Perhaps reading a fictional story about them first ruined me for the reality. Ha.) But really, I felt this book could've been so much more. The pictures were lovely, however!