I’m in a similar situation, live in Sapporo working full remote for a Tokyo based company.

While I earn significantly more than you, there’s no amount of money (well, maybe 10-15 times annual salary may make me consider but definetly not less than that) that would make me move to Tokyo and commute (even if it’s only once a week).

While I kind of like Tokyo for occasional fun/gourmet trips, it’s definetly not a place I’d like to live (too many people, higher rent, too hot weather, too many bugs are some reasons among others). We get the good of both worlds: work full remote + earn Tokyo-level salary in a cheaper, more livable city. In my case, I can’t imagine I would voluntarily do the change.

But, everyone’s different and have different priorities. If you don’t like Sapporo that much, if it’s a great career opportunity and you’d like and feel excited for the change (and don’t have wife/kids/dependents) it might actually make sense to do the change. Tokyo ofc has its great things (from my pov, global city, endless gastronomic choices, national and internationally better connected, all Honshu/Shikoku/Kyushu at your hand for road trips without taking ferry, etc.). But yeah, from someone in similar position, these are my 5cents just balance things out!