Most franchises get one good decade before the hype burns off. Pokémon just kept adding formats instead — cards for people who never owned a console, an anime for kids who never touched a Game Boy, Pokémon Go for people who did neither. The parents who caught the first wave are now handing it to their own kids. That's not nostalgia. That's a franchise that built new front doors every few years instead of guarding the one it started with.