Agreed - it's an unfortunate that such an objective measure doesn't exist. I like to think of the problem as SF (for example) not having its own currency when i

Agreed - it's an unfortunate that such an objective measure doesn't exist. I like to think of the problem as SF (for example) not having its own currency when it does have its own economy. SF dollars are worth less than Kansas dollars, for example. If we had a way of breaking this down, it might be easier to see which parts of pricing differential are "luxury expense."