Why No New SACD Along With New Vinyl

Question- I don't understand why the companies that are issuing new vinyl releases don't also issue an SACD version at the same time. I assume they are remastering the vinyl and I understand that they sometimes use high resolution digital as the source, so wouldn't it only be marginally more expensive to simultaneously release an SCAD and capture both ends of the high end market?

I personally have a universal player and no turntable and listen to rock, not jazz. I subscribe online to the Acoustic Sounds new releases email. They are constantly reissuing vinyl of 60's - 90's rock, but not the equivalent SACD. I'd buy almost every one in SACD. There must be as many SACD players out there as turntables- why forgo half the high end market for what appears to be marginal added cost?

I'm not trying to start an analog vs. digital discussion. I simply don't understand why this doesn't happen