Every home and automobile has its own market value. For some, it's similar. For others, the range of values is higher or lower. Some homes and automobiles have no market value, because the owner has no interest in exchanging the asset for currency.
There's no market value for a home like Fallingwater:
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or Buckingham Palace. Market Value only applies to things that someone is willing to sell. This is why people with huge amounts of money often buy original artwork or other rare and valuable items.
Reg Hartt exhibits films at the Cineforum, a small theater in the living room of his home on Bathurst Street. He owns a lot of very rare and valuable items that have no market value, because acquiring money doesn't interest him. What market price would you put on a life size replica of The Shroud of Turin? It has no market value, because it's never been sold. The original Shroud would be considerably more valuable, but not for sale at any price.
This is true, as an average, but the price range for individual providers is both higher and lower. $250-$350 is what one would expect to pay for an 'average SP'. Some Escorts are below average in terms of appearance, menu, or reputation, and their fee is lower. Others are above average in one or more of those categories, in their own opinions, or on the basis of positive reviews.
Your argument mixes averages and individual circumstances, and that's why it's meaningless. If you wanted to book a session with an Italian spinner, you might expect to pay $250-$350. If you wanted to book that session with Ariana Grande, an offer in that range wouldn't even receive a reply.
While it is likely that you have studied Economics to some extent, I highly doubt that you have ever studied logic, which is the basis for any successful argument not based on emotion, passion or zeal.
Sorry, but I have to ask. If there is no 'market' for Fallingwater or Buckingham Palace, how do you supposed they are assessed for the purposes of property taxation? Property assessments for the purposes of taxation are completed by comparatively assessing the local real estate market, and a tax rate is established and applied on every property whether the owner plans to sell or not.
Same for rare commodities and/or valuable collectibles. How do you supposed Fin Services orgs arrive at an insurance rate for them? Same assessment process against comparatives in a defined market. Insurers don't ask or care if you are willing or planning to sell, they simply collect data about the asset and compare against similar assets within their defined market to reach a defined rate.
My point is that your assertion that 'Market Value only applies to things someone is willing to sell' is incorrect. All commodities/assets have a market and can be assessed against that market to establish an estimated value. For sale or not makes no difference. Even women who are not escorts are part of a market, and are assessed against that market to determine their value to men looking for a SO. Conversely, men are also part of a similar market and are assessed by women for similar reasons.
Ever hear of a newly divorced/separated/broken up man or woman being described as being 'back on the market'? Diving back 'into the pool' is another similar euphemism.
Women offering themselves and their services as commodities to be traded on the open market can be and are actually being assessed daily against all other women acting in similar fashion within the sex industry (i.e. their common market). Yes, one variable that can be included in that assessment is 'price per hour', but there are many variables to be considered as well, it's not the only one, and may not even be the most important one to those performing their own assessment.
But make no mistake - there is a market, it can be segmented in many diff ways, and men are indeed comparatively assessing the measured value of each lady against all other ladies in that market. For some, the deciding factor will be price, for some it will be body style, for some it will be service quality (experienced or reputational), etc etc.
In these increasingly tough economic times, price per hour is likely the most heavily weighted criteria for hobbyists in most cases, but certainly not all.
That being said, it's not unreasonable or illogical to believe that regardless of supply, as price per hour for any commodity or service within a given market goes up to extraordinary levels, demand for that service decreases proportionately. There will always be outliers where demand will remain high due to other contributing factors, including perceived affordability within certain demographics (e.g.
some guys simply have more money so the commodity is still viewed as affordable in context), but typically speaking, they remain significant outliers to the norm, as the percentage of high rollers is small compared to the average spending capacity of the masses searching the market.
PS Buckingham Palace has an assessed market value of $4.9 Billion and Fallingwater's last assessed market value in 2004 was $15 Million, but has a revised estimated market value of $10 Million in 2022.