Grab--folk musicians will. The general public never has and never will care, but my experience has been that people who really like the music will seek out alternative and often less-commercialized versions.

Now we get onto defining the word "folk musician". :-/ I doubt most of the people we now call "source singers" or who C#, Alan Lomax and others recorded would have called themselves "folk musicians" before the folk community got hold of them. They were simply people who sung songs that they'd heard from other people. I think that as long as people still learn songs from each other (and particularly from parents) rather than from CDs, that's going to keep going, whether they think they're folk musicians or not.

Graham.