Hmm yeah, Duncan is a toughy. Either way the instant Super Walmarts come to town, they'll kill anything and everything in the town they moved into. Then 15 years later they'll move across town to build something bigger leaving an empty strip mall to degenerate into decay (I've seen this in 3 towns in Southern Illinois, first they killed the main street which is now decayed then they picked up and moved a few years later).
In my suburb the Walmart has moved 3 places in 15 years within 4 miles of each other. Each time they've moved the shopping area has just collapsed into vacant lots. On the plus side, Walmart's future is written on the wall, higher gas prices, the cost of food goes up, the more we go back to shopping on main street and less driving to some concrete jungle.
But yeah, Duncan.