The point I'm trying to make is that the cost don't typically roll down to to the consumer in the way that you describe specifically for the reason you call out. If Amazon is already doing everything I can to maximize profits and other sectors, they can't just make more money there to make up for a loss on Alexa. If there are leaving money on the table when it comes to e-commerce, they should raise prices whether or not Alexa is at a loss.

This is a separate question on whether you can get $15 a value out of a speaker before they cancel the program.

Uber might not have a long-term viable business model, but that won't stop me from taking a ride if I like the price. I'm a consumer not a investor.

If your point is that consumers might care about the long-term support for Alexa, then I agree that those consumers should be wary.