It's really simple François. You,
someone, or the recording industry needs to deliver for free public
audition, a regular high-bitrate music recording, one that people in general
reliably identify as sounding different from the same recording downsampled
to CD format, in some kind of level-matched, time-synched, bias-controlled
listening test.

Just one such recording will make things really interesting.

Interesting to a group of about 20 people. A far larger number of people have
already expressed a preference for SACDs based on informal, uncontroled
comparisons. Whether or not you like it, that is good enough for most
consumers. I haven't really been following the format wars of late but I would
suspect that it will take inexpensive portable players and autochangers for the
car for SACD or DVD audio to take off. That is what it took for CDs to take
off. It is what the average consumer really wants. Convenience and portability.
The fact is most consumers are quite satisfied with MP3. mOst casual music
listeners are not audiophiles. It is a niche market and always has been.