Fans want to see people who can play; they respect certain values like professionalism, and they don't want to be treated like shit. They pay good money and they look forward to seeing some good music being played by decent musicians, who really put their soul into it.
Tobler, John (1992). NME Rock 'N' Roll Years (1st ed.). London: Reed International Books Ltd. p. 366. CN 5585.