An unfortunately common tactic used in doing business with people now is to try to devalue their work and make them feel they hold less worth than that they are in order to get a deal out of them. This can even be true in situations where no money is involved. Having recently had to battle with a client trying this with me, I've come to realize just how important it is to fight for what you believe you are worth and not to crack on that resolve even once. I relate the story and expand on my reasoning.