I thank a lot of the small town Walmarts are going out of the fish business. They are selling a lot of the display tanks on e-bay. The one in Enterprise, down here quit about 2 years ago.
The funny thing is that when you take a fish to their customer service desk they don't want to see it and don't know the fish return policy. Both WM & PS got rid of their huge Betta display in those tiny cocktail cups, there wasn't enough turn over to keep the Bettas from getting diseased and kids at WM would place males in the same cup and that was a bad sight to see the next day.
I just bought plants & I QT all the time now after learning expensive lesson. always good practice like others have said, QT no matter where u buy from.