Brokers may be either retail or wholesale. A retail broker interacts directly with insurance buyers. If you visited a broker, who then obtained insurance coverages on your behalf, he or she is a retail broker. In some cases, your agent or broker may be unable to obtain insurance coverage on your behalf from a standard insurer. In that event, he or she may contact a wholesale broker. Wholesale brokers specialize in certain types of coverage. Many are surplus lines brokers, who arrange coverages for risks that are unusual or hazardous.
All points have merit but, like any service, unprofessional service can be punished by walking. However, point #4, “market blocking” is a particularly confounding practice in P&C (I don’t think this occurs in LIfe & Health). Market blocking is a matter which Insurance Commissioners could easily correct nationwide to the immediate benefit of the customer.