That is a valid point, General.  However, it might not be as sticky as one would think.  It is apparent that more vendors are leaning towards enhancing their textures with shaders.  And, although, specific settings and node arrangements become unique for their particular produce, what is not to say that I would like to apply such to another vendor's set.  As long as the artist's creative base work is not exchanged in the process, other individuals stand to learn and benefit.  It is getting so that one node arrangement looks much like another; the novelty is gone, lets start creating something with what we have.