I am a singer so like to go to singers nights and clubs for that reason, but I also go to listen and enjoy other singers. At festivals I will regularly miss big acts to stay in a good singaround. Why ? Partly the variety, and even if some one is not very good their spot does not last that long, if a well known performer has an off night it lasts all evening, likewise if you go to see an act you dont know they may not be to ypur taste. Also there are some simply outstanding singers and songwriters who go to sing arounds, I want to hear them sing. The problem is that there are so many who can sing well at the mid range sort of level that it is a safer bet to hear them in a sing around than going to a concert. A good singaround with everyone joining in also creates an atmosphere of togetherness that simplycan not be replicated by a performer playing to an audience.