Hi powerdog,
I think that some of the super premium mattresses are more of a work of art than a mattress. There is a great deal of expertise and laborious and time consuming construction techniques and some very high quality materials that go into them and there is no doubt that they are beautiful, well built, and high quality mattresses. Having said that … I would question from a utilitarian point of view if they can provide any better pressure relief or alignment than any other well designed and chosen mattress. They are for people where how they feel “about” the mattress is just as important as how they feel “on” the mattress and where more typical definitions of “value” don’t apply.
You can see more of my thoughts about the super premium brands in post #2 here and the last part of post #2 here
Phoenix