"In my opinion, the sound from high-res music is leaps and bounds better than redbook CDs and music DVD's mixed in Dolby 5.1. "

I would agree that SOME SACD's sound much better than regular CD's. I've learned from experience that just because something is produced in SACD format, doesn't guarantee that it will be a good recording. SACD's are hit and miss in terms of recording quality. Still the most important factor is the quality of the original recording. I'm sure you have experianced this as well.