Sonos rules. When the Sonos is finally Alexa enabled, that'll be sweet.
And Vince, your "smart" house with all the IoT is completely consistent with the Echo's trajectory. In fact, the Echo is counting on it. The Echo is the early leader to be the control plane for your house. Whether your cheap-ass likes it or not. Well, not your cardboard box, but my 5000 sqft house, yes.