[ghaff]

That sort of makes intuitive sense. Some percentage of people have relationship problems that more money doesn't necessarily help past some point--or even worsens--personal and family health issues that money can only do so much to solve, etc. But especially in HCOL areas, it seems logical that something over $75K inflation-adjusted makes various life decisions and other things easier which would reasonably correlate to happiness at some level. But which is presumably a decreasing utility function at some point for most people.