> I believe a few years ago there was research stating that roughly speaking, 70K per year (in spending) is the happiness threshold.

> Any spending above it leads to no, marginal, or only temporary extra happiness.

You are quoting an outdated study. New research [1] has shown that happiness does in fact not plateau at 70k, unfortunately

[1] https://www.forbes.com/sites/alexledsom/2021/02/07/new-study...