Haven't seen that issue around my area. There are probably 20 Walmart stores within 70 miles and I see Nintendo systems, Amiibo's, games, guides, etc. at all of them. That is, when I happen to be at one. There are only two close to me that I frequent. I'm in Missouri.
If I had those kind of issues, I would just buy from Amazon or Gamestop.com. I wouldn't bother.