Check this out, from Chris Weagle's
Human Dog Laboratory ON ST. CLAIR SHORES (My hometown):
Vidblog #053: Lac St. Clair -- Chris wanders around town lamenting about the overabundance of drug stores.
Vidblog #061: Number Thirteen -- Chris reads an article about a NEW Walgreens opening in town.
These videos, paired together, provide an interesting experience and invoke a certain feeling of remorse for the privately owned business. Independents be warned: it's hell.