I was recently talking to a Thai girl I know here in NY. She is originally from Chang Mai. When I told her that I think my wife and I will be able to retire in the wife's village in Udon Thani on 70,000 a month (we already built a villa and would also like to lease a condo in the city) she told me 70,000 is extravagant and we would live like royalty.
(neither this friend nor my wife were ever "working girls")