Paul,
I am not really headed anywhere with this. I am truly trying to learn where everyone else is headed with it. HBU might be part of it. Hypothetical conditions might be part of it, too.
As to misrepresenting posts, the part I take exception to is the insertion of words like "never, always, only" and attributing these ideas to me. I avoid always and never. Verifiable economic principles are likely to become false if one includes those conditions. The most probable price is not the one that is "always" paid.
As to the market data, there is tons of it. However, it would be my understanding that in science, valuation or rocket, the party publishing has the burden of proving the hypothesis. Generally accepted standards of appraisal practice similarly require appraisers to reach conclusions through analysis of data, reasoning, etc. The appraiser does not begin with the conclusion, leave out the facts, and argue that the burden of proof is on the reviewer to come with contradictory data.
I am open-minded. I can be convinced that the hypothesis is true, even though it sounds contradictory and seems to contradict sales prices. I may use market information to illustrate points, but for now, I am waiting to see what that school of thought has to offer. So far, its just the oft-repeated conclusion that.
"creating an income approach based on market-derived potential income for an unleased property does represent the fee simple interest."
Why wouldnt the prevailing sales prices of unleased properties (and if you prefer, with similar HBU) represent the market value of the fee simple interest?