Garg-
Glad you don't seem to have tired of beating the same dead horse. I'd point out that YOUR tape recordings only belong to you when the artist has assigned rights to you. And, once that happens, then they're YOURS to do with as you see fit.
    The "professional folk" you know aren't recording for any known label--if they were, they'd pay the company a good piece for the efforts of recording and promoting them. If you don't want to buy from CAMSCO, that's fine. If you don't think that a retailer provides a service, that's fine, too.
    CAMSCO has done some reasonably good work in helping artists get their work out. Peggy Seeger, Ewan MacColl, Margaret MacArthur, Skip Gorman, Louis Killen, Danny Spooner, Almeda Riddle, Bob Coltman---maybe they're not up in the ranks of the "professional folk" you know, but I think that a few people may have heard of them. CAMSCO has re-released authorized editions of their recordings. Then, too, where would you go to find labels like Document, Fledg'ling, Fellside, Springthyme, Sleepytown, Harbourtown, Veterans, Claddagh and a couple of dozen others that don't seem to be in your local music store.