Bangor is changing constantly. Big box stores abandon their older buildings only to build larger or "improved" stores within a couple of miles of their older ones. New buildings are built, and older buildings are turned into new stores.
Bangor is a major shopping destination for the northern and central parts of Maine. What affects people here is similar, in a lot of ways, to other area in the United States. In a place where there aren't a lot of economic opportunities retail jobs with lower pay and benefits are a larger part of the job market than they were before.