Right I've done some quick testing... and yeah if you've got good confidence and a max size belly you can charge a lot. The feature that lets you get slightly less but still a major amount is nice in some ways and annoying in others.
So two things I guess. First, there needs to be a more clear way to set dance prices or see what your dance price is because I had to go looking, and even when I found it I wasn't sure it was a thing you "should" do because of the "admin console" in another similar menu.
Secondly, I have no idea when the optimum time is to up my prices or what a good price actually is. This goes back to what I was saying about the milking being efficient and painless. You just get large amounts of capacity and production then click the button. You don't need to think too hard about it. Just push the button, or push it when you have a milk icon if you want to be a bit more efficient about it but that's all the decision making you need.
Doing the dances well requires "balancing a few plates" and there will be resistance to that. My current recomendation? Find some way to give people a pricing chart either based on belly size or how many kids you are having. Perhaps integrate it into the social system where you can ask other dancers what there pay per dance is to get some idea of what you should be charging.
Though also note. I have no idea how the dance prices are meant to work anymore. I set my price to 20,000 which seemed like a decent amount... but I actually get a differing number in the millions. (One dance got me about 2.8, but another just got me like 4.2) So... not sure how that's working. Like at all.