You are right, Nautile, and the story is certainly well worth thinking about.
However, when I want to get more material, want to travel, get tools, have a bite to eat, raise a cup or two with the mates or any other of a number of things, I still need money to pay for it. Making extra money from my crafts means that I can do more of the good things I want, get more and/or better materials for the stuff I want to make, or simply spend less time at a job that sometimes wear me down, in spite of the fact that I really do like it!
Lasse C