The price does sound high, but I know a lot of Japanese stuff was overpriced back in the day, their economy had some situation.
Was Go seen as like a luxury game? Or are Go players considered willing to spend extra for their hobby? Wild that Koei made their own console & everything for it. Chess game was out on the original Game Boy in 1991, but I know Go can demand more CPU than chess.
I remember playing a lot of KoF when I got into Mame emulator, never had their cabinets at my arcade. KoF 2000 was a good one.
Glad to see these releases but the very limited amount is a bummer. It should not be such a lottery to own nice physical releases of our games!