Big-box stores promise convenience and jobs for suburbs and small towns, but have a mixed reputation with designers and citizens. Many see big boxes as icons of unsustainable sprawl, reinforcing car culture with highway-oriented access and expansive parking lots. These boxy buildings not only take up vast amounts of land but often also require infrastructure around them to be overhauled. Later, when their super-sized occupants leave: a giant empty structure is left in their wake, which can be difficult to reuse unless a similar retailer takes its place.