By 1959, Burger King already had five restaurants in metropolitan Miami, and its early success prompted McLamore and Edgerton to expand throughout the United States by using a franchise system that allowed them to grow the business at a relatively low cost.
Do 1959, Burger king je već imao pet restorana u metropolitenskom Majamiju; njegov rani uspeh primorao je Maklamora i Edžertona da se prošire teritorijom SAD koristeći franšizni sistem koji omogućava poslovni rast po relativno malom trošku.