Back to the topic at hand...
dirtyd mentioned the bank account issue - very big problem everywhere in the world these days due to FATCA. Forget opening a local bank account anywhere. No foreign banks want to deal with the hassle of having to report on US citizens. Only option would be a Citibank account, BoA, or any other US bank in whatever country.
One commonality between Singapore, Hong Kong, Bermuda, Dubai, Abu Dhabi, and the Cayman Islands is that they all have extremely low to zero tax rates. In Singapore, you can earn $200,000 and pay just 9.5% tax on that income. The top tax bracket is 20% for income earned over $320,000. No surprise at the high quality of life in those places plus year-round tropical weather.
For Mainliner II, I guess those who never travel outside their home country and know no better and swallow all the media/political propaganda bs about how great their country is, how terrible other parts of the world are, etc. one would never know any differently. Though if you were in the military, would expect you were overseas at some point and have a broader perspective. Sounds a lot like N. Korea and their government propaganda machine talking about the evils of the US, its high crime and incarceration rates, drug use, low education rankings, military exploits engaging in wars all over the world, and the need for them to develop nuclear weapons to protect themselves and how good they really are...brainwashing at its best. Goes both ways.