You can’t please all the people all the time of course; if you have a mixed audience of keen and casual punters, then all you can do is try and mix familiar and unfamiliar material if you want to retain their attention. It’s the same with Folk dances; novice dancers enjoy doing simple and overworked dances like Virginia Reel, but experienced dancers want to do things like Levi Jackson Rag or Playford dances. If you are there to entertain, you either give people what they want, rather than what you think they need, or you play to an empty hall.