Earlier quoted context omitted.
Rented a flat in Tokyo for a month too as a tourist. But it wasn't cheap. Around $1500/month, in 2011. But it was 3 rooms, and very nice. So maybe not so bad, actually? But then again, it was many years ago.
3 rooms, in Tokyo, for a month, is bloody cheap unless I miss something.
Much thinner wall insulation, single glazed windows (until recently), much smaller elevators in high rises, etc…
So on a quality and square footage adjusted basis it’s still quite expensive.