"Walmart test" vs bestplaces.net


I am wondering if anyone ever makes exceptions to making sure that a park is in a solid MSA according to best places.

Currently looking at a park that has good numbers on every other front (it is mostly stabilized):

Walmart is a few miles away
84% occupancy (38 lots occupied)
$240 lot rent
City water/ city sewer, submetered
Town is only about 4,000 though and not in an MSA.

My question is are there exceptions where you can justify this location if bought at the right cap rate and if you have enough confidence from a test ad that there is enough demand to fill lots?