plus I don't feel comfortable that there is a silent listening device lurking 24x7 for all family members, so it is not just they're useless, but I intentionally do not want to have them on at all 99% of the time.
the only amazon device I use is FireTV for netflix and Amazon prime video, all amazon ereaders, echo, alexa are replaced by my cellphone...
to that extent, i feel amazon stock price is too high, too much hype for the alexa/echo/kindles at least in my opinion