I expect the most important factor in the viability of the format is the availability of the mechanical transports. Being a mechanical device running at very high speeds they all fail eventually. Since the computer market offers optical disc readers in fewer and fewer devices the incentive to keep making the spinners is decreasing. Most CD players that die do so because the transport fails and there's no available replacement. It's just a matter of time.
Are CD players goig the way of the 8 track,and the cassette?
Streaming seems to be gradually pushing the CD player into extinction.My CD's are in the closet,and may never return!