What Jason described is exactly what I have been doing.
It can be eye opening and frustrating at the same time but a great exercise.
An added element is that I know what 2 stores NET that I have run reports on to compare to but that is kind of an aside.
Set up tables with summaries of the usual key factors on about 10 different locations so far.
I have been getting the reports from ESRI at $50 a pop.