Over analysis occurs when you don't have a clear objective behind your research, or when you haven't clearly defined your pass/fail metrics.

Before you start your analysis you should have a clear idea of what makes a good location and what doesn't. Then, do as much analysis as is required to satisfy that it is or is not. Research of this nature should not be open ended.

I'm happy to chat through how to define the pass/fail criteria and setup the go/no go logic.