There's a new Xbox One game which requires Kinect.
Kung-Fu for Kinect is due out next month from Finnish indie Virtual Air Guitar Company. It's a side-scrolling beat-'em-up where you strike poses with your body to perform martial arts-inspired moves.
The last high-profile game to take advantage of Kinect was Just Dance 2016, which launched last October.
Despite being bundled with every Xbox One for more than six months, only a handful of Xbox One games require the camera sensor.
There's no real reason why you'd want to buy one now - which is just as well as new sensors cost around £100 (or, alternatively, £30 from CEX).