While the "Baht Run" is a thing of the past, I can say that I did two (2) segments, BKK-KKC-BKK on TG, for 2,400 THB ( ~ 60 USD).

So with enough time one could rack up 100 segments (1K) for what, 3,000 USD?

4,500 USD seems to be a more reasonable 'low-point', with five trips from the East coast to SIN or BKK?