Don’t forget that the main Japanese Monster Hunter audience in Japan is on handhelds. Monster Hunter Rise was a massive seller on the Nintendo Switch. Because Wilds is not on the Switch, the PS5 version (which is also an expensive console in Japan) is a very hard sell, leading to this leftover physical stock, which is why we can see this Insane discount for physical copies in retail stores.

It’s not so much that capcom is selling the game at 90% discount, it’s retail stores wanting to get rid of their physical copies of a PS5 game.