Prostitutes are so much overpriced because we guys are too lazy to learn Thai.
The monopoly of these girls on the bride market allows them to get huge amounts of money from foreigners, and this, of course, is the main reason for their true feelings for old foreigners.
Those heroes who actually attended Thai language classes (and not just visited the school once to take a photo for the Non-ED Visa) - these guys prefer massage queens. It's so much cheaper. No bar fines, no hotel or drink fees. The girls are very tired and extremely lazy at the end of each day - so they will be happy if you massage them instead.