I am a Korean-American US citizen. My wife is a South Korean citizen. Initially we thought it was natural for her to gain US citizenship, but we've now decided

I am a Korean-American US citizen. My wife is a South Korean citizen. Initially we thought it was natural for her to gain US citizenship, but we've now decided otherwise - both for reasons similar to what you mentioned, and also because the US seems to be in a downward spiral politically. Also I've witnessed first hand the Korean healthcare system at work via my wife, and it is by far not only less expensive, but also (maybe more importantly) less complicated. It's not perfect, but for the average person I'd greatly prefer it to the mess we have in the US. Of course, South Korea also has its share of political issues both internally and externally. So it has also crossed our mind that perhaps we ought to think of obtaining citizenship or residency in a third country for when the "earning period" chapter of my life starts to close.