Literally 10 minutes ago, looking through the book publishing Tashenov and stumbled in the text on the trail. the phrase "... circus performers and dancers ... that as, in fact, artists, selling their soul ...", which brought together the" idealistic "and" materialist "(market) treatment of TH in my head <! -- ~ 7 ~ ->
Shl, just in case: trade - it's just a mutually beneficial exchange.
ZYY propose an approach remains to answer the question, what sells NNH (not real artist), and what still sells HX