Like Costco and Sam's Club, Bi-Mart stores are membership stores; unlike those chains, its members-only policy started as a workaround to fair trade laws established in the United States in the 1930s by laws such as the Miller-Tydings Act and those related to suggested retail prices. Thus, the membership for an entire family only costs $5 and never expires.
Based on the above text, what's the best answer to this question: do you have to be a member at bi mart?
yes