But I must say that most folk conserts I have been to, the performer/s do tell extremely funny stories between songs.

The classic case form that is Vin Garbutt - gives the people an achingly funny discourse, which may have nothing whatsoever to do with the song coming up or perhaps it may appear to be coming closem to destroying it - and then, wham, he goes straight into the song about some dead serious subject and sings it to raise the hairs on the back of your neck. And then he plays a funny tin whistle tune, which is pretty difficulty to do. (Difficult to play, and difficult to play so it's funny).

What it all comes down to is, "fun" is just one colour in the spectrum of enjoying what you are doing, and the other colours are just as important.