You're right! I own 50% of this book club, and don't any of you forget it!!
Honestly, some people might be waiting to see what kind of books will be chosen before joining. If you're a romance fan, you don't want to join a book club only to find you're now responsible for reading a 400+ page biography of Woodrow Wilson or something.
Did you have any ideas about what book you might want to read?
One thought I had was that we could pick a novel that's been adapted into a film, then watch the film adaptation (or adaptations plural if we read something like The Big Sleep). That way it's like a book club and a movie club at the same time.