The bluegrass band, Special Consensus, from the Chicago area has been together a long time. They pointed out that 90% of the places they played when they first started out were now defunct, as were the people booking them. They had to constantly work at making new contacts. Margaret and I have also run into places where we have played many times suddenly being run by someone who doesn't know us. I don't think they have an obligation to have us, just because we played there before, but it'd be nice if they paid a bit of attention to the past of their venue.