Perhaps because we are smaller with less competition, or maybe we are smaller with more competition or perhaps more organised or even less organised I do not know why that is not the case here. But it simply would not be allowed. All bands would just pull the plug and boycott the venue. There might be a few minor bands looking to step up. But the crowds would dwindle dew to the drop in standards. We have the musicians union and various other organisations who would not allow this kind of practice. I hope any contract involving this practice would be deemed unfair and illegal. We have rights and standards agencies who fight for consumers. All clubs are licenced and complaints about sharp practice could result in loss of licence.

http://www.soundclick.com/bands/songInfo.cfm?bandID=687727&songID=5238055