This is a common objection to using any third party advisor or consultant. If it was never cost effective to use a broker then many multi-billion dollar brokerage industries (investments, insurance, employee benefits, real estate, etc.) wouldn’t exist. The fact is when there is a complex market with multiple players and significant information gaps between buyers and sellers, brokers add value. If you are successfully procuring energy on your own, then you probably have a well-trained staff with a deep understanding of energy markets.