I know prices don't really translate across countries (taxes, salaries, FX fluctuation, etc.) but the new PS5 with Blu-ray price (about £375) is now still about £10 less than the new PS5 Digital Edition price in the UK.
For perspective, the PS5 with Blu-ray price in Japan before was about £310 equivalent.
Of course, the main problem in Japan is just getting one in the first place: a combination of high demand and low supply due to no competition. There were some hoops that could imprive your chances of getting at least one though.
tl;dr: Japan have had it good, provided you could get one.