User blog comment:Unknown Channel/Wii Sports Resort on Wii U: Swordplay/@comment-44037850-20191231182426/@comment-35824731-20200101000435

I don't think so. Perhaps because the buyers think it's not worth it to buy WSC. For me, it's the pricing model.

Plus, it could be because you can make your opponent dizzy in boxing, causing the rating to bump up slightly in American version.