I just saw this deal at the Sam's Club in Charlottesville, VA. A good discount for a Nintendo game. I am not sure how widespread this is, but I would have sprung on it if I didn't already have it.
Correct me if I'm wrong, but I'm pretty sure Sam's Club is trying to get rid of their Wii U stock. The only Wii U related items at my local Sam's are the eShop cards for Wii U and 3DS.