Breador. With Modern we have five dances in Latin the same. There is no time to be brored. But Salsa is just one style of dance. Which means to be a success another two single styles are needed. ideally Jive. and the Merangue could do. To do only one unless there are keen followers of the Salsa wont work. In a night club its different with the atmosphere the decore and of course drinks and meals are available.But then we are going to have age restriction. Whatever happens the music has to be good.
Once a person becomes proficient in Ballroom there isn't any other style that would be beyond them. Add Latin to that and they have the ability to handle anything that comes their way..