Earlier quoted context omitted.
>Kinect => It's not dead ??? Is it alive? It very much has an immensely passionate community of students and hobbyists using it in ways well past its intended use (e.g. it's some of the cheapest mocap hardware you can buy). But I don't think you've been able to officially purchase one for 4+ years now. Hard to call that "alive" in a business sense. Honestly a real shame that Xbox hasn't pivoted it into some other tea…
The Azure Kinect was released as a successor for the research and business applications[1]. I know one roboticist who has used one, but no one aside from that. Definitely dead as a consumer gaming device, but a product evolving towards a discovered usecase is a surprisingly happy outcome from MS. [1] https://azure.microsoft.com/en-au/services/kinect-dk/
You can buy USB cameras from Intel and Logitech with comparable sensor packages to a Kinect.
For Microsoft's hardware efforts that is often seen as its own win when they can take something people don't know they need, package it in a commodity way to get competitors to take interest and build their own versions:
The scroll wheel on the mouse went from an R&D project at Microsoft to the Office team realizing it was the future of productivity and bundling mice with scroll wheels with Office to now just about no manufacturer would think to build a mouse without a scroll wheel.
The Kinect used console gaming as a trojan horse to commoditize thousands of dollars of lab sensors into an integrated $150 accessory to the Xbox 360 and now there are versions of that sensor package in laptops and smartphones and VR headsets and so much more. Kinect as a gaming brand may be dead (for now? AR/MR gaming has always been one for recurring fads, it may come around again, who knows), but the legacy of Kinect lives on in hardware all around us. The hardware didn't just go back to being thousands of dollars of lab equipment, it became part of the computing atmosphere around us. That's an incredibly interesting and weird win that a lot of people wouldn't necessarily credit Microsoft for being such a lever, such an instigator of change/innovation, such a bridge between R&D dreams and "background" reality.
(ETA: Microsoft still sometimes uses the IntelliMouse brand as a bit of a retro-throwback, but the above analogy does help show how much that brand is very related to the Kinect brand. Almost every mouse today is an "IntelliMouse" under the original brand meaning. The brand did its job so successfully to point where people don't even sometimes remember the brand, other than sometimes retro-hardware fans.)