The Informational Content of Price
A girl's asking price contains more than financial information and how it will impact your wallet. One can learn a lot about a girl's attitude and her willingness to show you a good time by comparing her asking price to the average price range in the particular venue and location she is working in. That is why it is helpful to know the general ball park range of prices in any particular Go Go, FL Bar or even out on the street dealing with SW's. The comparison can serve as a fairly accurate forecast of a possible session with her.
For example, the average price range for ST in a Soi Cowboy Go Go is between 2000 bt to 2500 bt not counting the barfine which has nothing to do with the girl. So if a Cowboy Go Go Girl were to quote me a rate more that 3000 bt for her ST, say 3500 bt for ST, I would surmise that something was not quite right with her. Note: it is not the nominal price itself that contains this important piece of information, rather it is the comparison of her price to the average accepted price range in that particular establishment that contains the relevant piece of information. It really does not matter what specifically the problem is. It could be she is only into Japanese customers, or she is tired, or she does not like you, or any of 20 or 30 other reasons. Who cares? All I need to know is her price is outside the average accepted range and that it is statistically valid, not foolproof, for me to assume that a session with this one might not be very good. So I usually go with slow in such cases and give girls like this a pass unless they very quickly lower their price all on their own.