Hi cagazote,
There is really no way to objectively measure or quantify value because each person places more or less importance in many different factors when they are buying a mattress. All of these individual tradeoffs and choices are part of what I call someone’s “value equation”. In other words … there is no such thing as a “best value” outlet … there is only “best” for each individual.
What I try to do instead is to give people choices between “good and good” so that they can make meaningful comparisons and choose the outlet that offers the best “value” according to their own personal value equation.
The business members of this site listed here are among the “best of the best” IMO and this is part of the criteria I use when inviting various outlets and manufacturers to become members. I would “guess” that this list will eventually reach about 50 members or a bit more over the coming year or two based on my research and conversations with many manufacturers or outlets that are not yet members. My comments in the forum often mention some of the manufacturers or outlets that I think highly of that are not (yet) members of the site.
Some of the members specialize in online (or better yet on the phone) sales and guidance and they are listed with a brief description in post #21 here.
Hope this helps.
Phoenix