I can only speak to Bangkok, but life in Bangkok will be cheaper, safer, more convenient, the food quality will be higher, medical and dental care will be much higher standards, public transport is better, than in Iowa. I’ve spent less time in Vietnam, but it seems to be hot on the heels of Thailand.
Bangkok ain't cheap. The current Thai government discourages retirees. Those who have already retired there are moving to Vietnam, Cambodia or the Phils.
