Actually, you really should never want to see anything near 100% penetration on a system, except maybe right at launch (which of course did happen with BotW). Because that indicates a very narrow demographic, and that is lethal for a console. Any successful console will reach a broad, varied demographic, and that means, by definition, that even the most popular games will not come close to reaching everyone.
So...who are these people? Well, people not interested in those genres.
Maybe people who just want the simple indie games, like 2D stuff. My wife, for example, has zero interest in any game that is 3D. Too complicated for her.
Maybe people interested in fitness stuff, like the boxing game or Ring Fit.
Maybe people who are budget gamers - there are a LOT of people out there who simply will not pay $50-$60 for a game. They want games to be no more than $20. Nintendo has long since decided to stop selling to these people.
Maybe people who don't play long, involved games. Some people like bite-sized, pick-up-and-play games, a category that used to be particularly well-served by Nintendo's handhelds, and presumably that audience is now on Switch too.
So...who are these people? Well, people not interested in those genres.
Maybe people who just want the simple indie games, like 2D stuff. My wife, for example, has zero interest in any game that is 3D. Too complicated for her.
Maybe people interested in fitness stuff, like the boxing game or Ring Fit.
Maybe people who are budget gamers - there are a LOT of people out there who simply will not pay $50-$60 for a game. They want games to be no more than $20. Nintendo has long since decided to stop selling to these people.
Maybe people who don't play long, involved games. Some people like bite-sized, pick-up-and-play games, a category that used to be particularly well-served by Nintendo's handhelds, and presumably that audience is now on Switch too.
