Mario Kart 8 Deluxe is somewhat of a weird precedent for Nintendo.
The Wii U failed, for all intents and purposes, so they're taking Mario Kart 8, a game that's not even three years old and selling it again on the Switch as a faux "Game of the Year Edition." It's an "enhanced" version of the original with a Double Item Box (and a two-item carry system as well as the re-introduction of the Feather and Boo), an easy steering mode for newcomers, three returning characters, two new characters, and Battle Mode. Does that sound enhanced enough to spend $60 on again? That's for you to decide.