Jack Skellington isn’t the type of character Disney prominently displays plushes of in its stores except maybe during Halloween, whereas Spencer’s Gifts and Hot Topic always seems to have some merch on display.
And to revisit what Tim Burton said, there is some truth that some of the magic behind A Nightmare Before Christmas is its bizarre nature.
It’s a film far different from what Disney traditionally made at the time, and honestly, still different than what it’s done since.