It was probably me that said it. On my 2nd tour, in 2003, I spent 6 weeks in Patong, almost every day at Scandinavian Bar(now Bangla Sexy 9 Bar No. 2), got to know quite a few of the BGs, as I didn't have a regular there. There were two BGs there who were extremely picky, mainly based on age, one liked guys under 30, and would not go with a much older guy for any amount of money. The other was a little more flexible for age, but not a lot and cared more how handsome a guy was, and how charming, fun, etc. Money was not a big factor to either. 1000 Baht was fine, but very selective.
That was 2 girls out of probably 30 who were working that bar at the time.
Both were stunners. There only was one there who was imho better looking than them. She went with me(I'm middle-aged), and we had a great time together. But she wouldn't take a Baht less then 2000. I bargained hard w/ her, she wouldn't budge. When she started walking away from me, a voice inside said," jesus christ, look what you are passing up over $10" and I called her back. She was worth every penny. Awesome body. Wonderful face. And a real sweet girl.
More than half the girls in that bar would go w/ the first guy who waved 1000 Baht at them, old or young, fat or thin, etc. A few others would get anyone to buy them a drink, try to keep him there, then as the evening progressed, see if they could "trade up" to a guy who appealed to them more. If they were unsuccessful in doing so, they still had a "date" for the night. Some of the top girls there would come over and offer me LT for 1000 Baht, if I would wait til they short-timed the older guy they were drinking with.
Lots of ways to play the game. Anyhow the statement you referred to was about "some" BGs, meaning the 2 from that bar, not all BGs. The majority will go w/ anyone for 1000 Baht. The best are more selective. Some won't go w/ guys as young as you for various reasons, but mostly they figure you have less money to spend.