Some people have their legal drug. Pokemon is one such.
Okay rpg games in their own right, but also a license to milk and print money, especially with kids. Pokemon is Nintendo's secret weapon of sorts, transcending every console gen since the 90's. Always sells and hardly ever disappoints. Across games, anime, manga and much other merchandise, its kept their coffers full nicely. While I don't play the games myself, I can't fault the genius of Pokemon's overall design.
I can understand some being burnt out on Pokemon games as the series has been running for so long, however the true cunning is that in marketing Pokemon to kids at large, there's always someone that wants to buy it. Kids will always want what their friends have too.
Its okay to skip a Pokemon game or two, as much as a gamer might skip a Fifa or CoD game. There's other cool rpg games you can invest in if that's what you like, its just a matter of seeking them out.