Jim I have no argument that those that collect, analyse, interview, dissect etc etc.have a valid place. They all make a contribution for archiving material among a myriad of other functions.
However for folk to survive it is the audience that is crucial. Their level on interest in the medium will cover all levels from intricate dissection to just enjoying the song/music and ambience generated.
Certainly some include the multiple role of performer/listener/researcher/etc. but I think many more wander along for purely for the entertainment. Surely a broad church needs to be encouraged although obviously some venues will have a more focused/specialised approach (As is their perfect right) After all we still tolerate Morris Dancers!