I used to go to a club which had a core audience of 10-15 people and a core group of five or six floor singers (the MC very rarely bothered booking a guest). It was great; most weeks you'd get two songs in the first half and one in the second. Then something changed, more or less from one week to the next, and the club was inundated by young people with guitars. A typical night these days consists of 20+ floor singers doing one number each, to an audience consisting of other singers and their mates - plus that core audience of 10-15 people, most of whom are still there.

Of course, on a guest night there's no chance of 20 people getting a go - although even then the MC tries to squeeze in six or seven - so on those nights the audience consists of anyone who's actually come out for those acts in particular... plus those 10-15 loyal people. It's a bit of a shame.