Certainly not the greatest reason for preferring Walmart not join the neighborhood, but as those have been discussed previously, I only will add this to the list: plastic bags.
They will be on Highway 12, our neighborhoods and the marsh. The only positive might be if dog walkers pick them up to clean up after their canine friends. Also, Walmart could hire bag retrievers.
By the way, what will happen to Walton Lake when the property is covered with asphalt?