Most organisers I've ever met do it for the sheer love of the music. It's unfair to single out individuals but I will give one example (alright, two) - Vic Smith and wife Tina are and have been the most enthusiastic promoters and supporters of traditional music in my area since I were now't but a lad. They make no money from their endeavours but the enjoyment in their faces when their guests perform is quite evident. I reckon the same is true of performers. Success in the folk world in monetary terms is an oxymoron...the very few who succeed in earning a living from their music do so at enormous physical and mental cost to themselves for very little pecuniary reward. I would imagine that very few of us would wish to put in the hours and the traveling they do...how on earth they retain a freshness and enthusiasm for their art I have no idea. They clearly really do love the music. Success is what you feel it is.