Tokyo also has beautiful gardens hidden within the chaos and there's something magical about that. Just around the corner from the Westin Miyako near Chabad was a lovely free garden to stroll though.
Why go to another country before exploring Hiroshima, Hokkaido, or Okinawa?
E/t in japan is pretty pricey, and all things being equal, we'd prefer being in a nature setting with hikes, waterfalls, beautiful airbnbs, etc. Plus, the weather isn't ideal when we'll be there.
On a long'ish trip, those extra costs can add up fast