On this topic, the smart speakers and to a larger extent smart displays from Amazon Alexa and Google Assistant (and maybe even the fire TV and Chromecast) are very reliant on connection to the server to deliver anything of value.

I don't think people realize that it can just go away at any time. I'm sure the terms and conditions allow a clause which shows the company to shut down these services at any time without facing a requirement to buy back these (now useless) gadgets.