Have you ever seen someone talk to a PC from across the room? Is there any popular PC voice software that is "always on" and doesn't get itself into bad states? ("dragondictate.exe has stopped")

I personally have taken 100's of pictures of Windows dialog boxes on giant advertising/airport displays. If people who are paid big bucks to manage a display can't keep it running flawlessly, how will someone who has bad motor skills and bad eyesight?

I'm not saying Alexa is more useful than a PC. But I am saying that Alexa is zero maintenance, and a PC is not. It's the same reason Chromebooks outsell laptops -- it's not that they do more than laptops, but what they can do, chromebooks do "better".