I used to looooove CB a few years ago, I found the easiest way to bring a crowd in was to keep my goals small and just have a lot of them.
What was a typical sequence of goals you would use in your room? It might be interesting to hear what kind of goal sequence different models use. I saw one model recently who would alternate removing some article of clothing with some very simple goal. The clothing was typically priced 400 to 500 tokens, and the simple goals were under 200.