Shaunodon on 14 July 2018
https://nintendoeverything.com/octopath-traveler-selling-out-in-japan-full-map-of-orsterra-shared/
Tweet from Octopath PR (In Japanese)
"Translated from Japanese by Microsoft
We are sorry that some of the shops are out of stock in the three holidays!
You can also consider the DL version and the download card for sale at Lawson!"
Maybe not just one niche store?
