The idea that "the increase in cost of living wipes out the salary increase" always comes up in these threads, and I think it's way off the mark. For example,

The idea that "the increase in cost of living wipes out the salary increase" always comes up in these threads, and I think it's way off the mark. For example, I used to live in Fukuoka, a mid-sized Japanese city, and now live in Tokyo. A nice 2BDR in Fukuoka downtown would cost (say) U$600 per month. My salary in Tokyo is about double of what I could earn in Fukuoka, but an equivalent place in Tokyo would cost me way over $1200. So I don't live in downtown, and I choose to live in a smaller place. But it's not like everything costs twice as much as in Fukuoka. Food is a bit more expensive, not twice as much. A smartphone costs pretty much the same wherever you are in Japan. Traveling abroad also costs the same (or less in Tokyo, since you usually need one fewer leg). More importantly, if I keep my savings rate the same (savings/income), I can save much more money in absolute terms; I don't have to retire in Tokyo, so it is definitely worth the save more.