It has been a way of life for a long time. My husband has a granite countertop company so we trade a lot: dental, hair salon, landscaping, as a member of a trade association: gymnastics, summer school, preschool, plumbing, repairs, dental braces etc. Trade associations are not cheap, they charge a fee, everything is overpriced except for the things mentioned, it was something my husband and ex parteners got into and we still use from time to time.