I love my echo. Sits in my livingroom and mostly answers my questions about the weather and converting units from oz to ml when I'm cooking. But since I purchased it I have never once paid a penny for the use of it's service.
One could argue that Amazon can advertise better because it knows I ask all these questions, but Amazon 'advertising' is mostly just forcing sellers to pay for the top spot on Amazon search. Is that really going to make more money by knowing that I don't know the weather today?
I get the impression that Amazon has finally clued into the fact that paying thousands of developers and research scientists to build a voice assistant that makes no money is not a great business model. The coming layoffs have left a lot of my friends in the Alexa organization rightfully worried.