Juicero wasn't useful therefore it went away. Generative AI is useful therefore it won't go away, just like how fire is kMy old yet it's still here to stay.

Juicero had customers that thought it was useful. Both "smoothie juicers" and "smoothie subscriptions" were big product categories equally before and after Juicero tried to unite them with a technological middleman. Kuerig, the Juicero of coffee, remains quite active and profitable (and wasteful).