Perhaps this is the Hell that us audiophiles are doomed to? It is kinda like FM vs. FM HD....just got a HD tuner and yes there is much difference in amount of info/detail offered...but is it more sonically natural?....still working on that one.
But, of course, sonic quality has lost out to convienence formats, ala: remember cassettes?
And yes, the DVD-A vs. SACD is like everything, depends on so much to do with the recording, mastering and more. Such a great hobby...until you get into the "audiophile" end of the spectrum. Audio insanity is not a viable legal defense!