The market determines value
Believing stunners in go Go's have trouble getting 2 customers a day just doesn't make sense.
Wasn't there a hottie over at Annies last fall and summer who was basically booked solid each day, and in fact she stopped doing overnights because she was so busy? I understand (as I never met her) her personality was good also, and of course she did A level but beyond that her requsites were what? Young, tall, slender, and pretty or in other words she was a stunner.
So why would a comparable girl in a Go Go willing to work just as hard, and put in as many hours, and basically be willing to give up much of her social life, not be earning similar money?
Now admittedly soapie girls (unlike Go Go girls) don't have comparable discretion to turn down customers, so in that sense its a more difficult job, but I don't think that changes the general rule.
Stunners with decent personalities have a certain market value in Bangkok, and while their cash flows can get temporarily disrupted due to unforeseen outside events (such as relentless political protests impacting tourism) , longer term the market will put a premium on their services