For what application do you need 96kHz or 192kHz of bandwidth?
Ultrasonic recordings
https://www.youtube.com/watch?v=hCQCP-5g5bo
Don't forget about cats and bats, they like music too
Good old FM radio (in stereo) is a 192kHz mux, annoyingly.
Tuning into time radio signals like DCF77?
See also: https://news.ycombinator.com/item?id=3668310
Ultrasonic recordings
https://www.youtube.com/watch?v=hCQCP-5g5bo