I have a different take on it. I don't think of it as "only trade tickets". I think of it as "YAY! TRADE TICKETS". The milk/egg exchange, which I do most often, yields one trade ticket. That one trade ticket costs up to 65 energy. It is possible for the Forest Maxotaur to drop two trade tickets in the two collections per day. That makes him worth up to 130 energy per day. Shortdanzer reporters one drop of two trade tickets, so the yield could be even better. That makes me very happy.