More than money an artist need appreciations & applause from the audience.
Performing anything on stage and in front of so many audiences is itself a big achievement. Be it the dance, vocal, drama, playing musical instruments anything, it look simple in the eyes of people/audience but it is not so. Its true that professional artist get good amount of money for their art but I am sure its not the amount of money but the appreciations and the applause by the audiences is what a true artist always needed. You can easily see the activeness and happiness on the face of an artist once he gets the good applause from the audiences. So, please take care and applause for the artist when you go to watch some performances.