JD, I don't think you're missing anything. You are fortunate to belong to a group of music lovers to whom SACD is marketed.
In the larger universe of recorded music, however, I believe Michaela nailed it when he wrote:
IMHO, it's always been about the software available. They just never stepped up to the plate to support the format in terms of releasing titles that most people can relate to. I have stayed on the sidelines for awhile now because there's just so few titles I would be interested in owning.
There is simply little demand for SACD titles from music consumers with the most buying power.