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.