Also, I can walk downstairs and say "Alexa, turn on the living room lights" and my Amazon Echo turns them on. Same thing to turn them off again. That's extremely convenient...way, way more convenient than walking around and turning 4-5 lamps on and off.
They have come way down in price to the point to where you can either pay $20 for a smart bulb versus $10-12 for a standard LED.
Will be interesting to see what happens though...I do agree that life isn't just all about efficiency. But people certainly do enjoy convenience.
They will, one day, when companies stop with the vendor lock-in bullshit. An app - a siloed, sandboxed program that cannot meaningfully interact or seamlessly share information with any other program on the device - is a very crappy interface for doing anything. But we're stuck with it, because it's easier for companies to make money off apps, and cooperation is hard.