Greater diversity: Downtowns have greater functional diversity than many of the newer centers being built on the city fringe. In many communities downtowns still serve as a center for retail stores, financial institutions, public agencies and local government offices, local public transportation, historic areas, and cultural and educational institutions. This diversity gives to downtowns a long-term strength.
By contrast, many newer developments are unifunctional, devoted only to specialty retailing, quick-stop shopping, or single-size residential developments. As a result, these areas are much more vulnerable to changing times, and indeed will likely make them obsolete long before downtowns. Many suburban developments from the 1950s and 60s already have become abandoned, to be replaced by more recently built fringe developments.