Another one of the those bizarre reprint anomalies or is it a new/old stock dump?
Oddly enough, this confirms my suspicion that this game never had a spinecard. Anyone aware of how these were distributed in Japan?
There are quite a few dozen brand-new and sealed copies of 1995's Christmas NiGHTS for Saturn floating around out there on Amazon US/JP and even on eBay for pretty low prices (around $20). I remember sporadically shopping around this game and the used prices were always around $15 since the US version is dumb-dumb expensive.
Then I was surprised to see new copies of a 20+ year old game just pop up somewhat recently...