Consider this, Why Google Home? plugging you into the Google online information, and to make sure you get good connectivity, you use Google WiFi and don't forget Google Fiber, expected to hit more and more cities in the future that brings the internet faster to your door step. Why Chromecast Ultra? It will keep up the earth shaking popularity of YouTube and the new introduction of YouTube Music. Google again is focused on its ecosystem and the devices needed to allow us use the ecosystem to the max.
Now I just need to figure out if and and when, and of course, am I Quite Black or Really Blue? When I'll be paying all that money for a new smartphone... dang!