Consider that the CES used to feature the next big thing in music and video playback.
Cassettes, CDs, SuperAudio CDs.
LaserDiscs, DVDs, BluRay.
The music business is now near collapse and everything that needs to be seen or heard
can be streamed or downloaded. That will only increase over time.
The "next big thing" will be incrementally better compression and faster transfer speeds,
none of which need advanced real-world "demonstrations" to the theme park crowd.
The line, "Move along, nothing to see here" applies far too well.