A small percentage goes through self check out at Wal-Mart.

even Walmart will negotiate on some items. 

How susceptible are they to getting wiped out by Walmart or Amazon?

If your tenants are blue collar, likely they're using Walmart debit cards, etc.We're experimenting with eRentPayment.com .

He owned a piece of land and next door Wal-mart build a store and suddenly his values skyrocketed. 

My friends think I am crazy to grocery shop at Walmart to save $20-30 a trip or to not drink much at all to save money on alcohol, but I can see the results so I keep moving forward.

This is most people's single largest purchase in their lifetime, why treat it like you're buying a certain name brand TV and check amazon and walmart and then your local best buy etc and take the lowest price, but then factor out warranty etc and you might pay 30 more for geek squad or something.  

It still only has a regular Walmart and much of the housing looks to be built I would guess around the 50's.

There was also a NEW Walmart built in 2014 with a brand new apartment complex right next to it.

Move into things that go up when housing prices go down --- Walmart stock, McDonald's stock, K-Mart, Kohls, things that people have to buckle down on money on.