Great suggestion, Thomas.   I think we do tape everything. The problem is what to do with the tapes afterwards. If you are coming to the Eisteddfod this year (October 16-18), you might want to talk to Howard Glasser, who has been involved in the forming of a folk music/culture archive at U. Mass, Dartmouth. His recordings and research will be there, and so will those of other important collectors. Preserving this material is a big, ongoing concern.   
Deborah