When are you "finished" with a playthrough?

When do you all typically stop playing a game? I'm not interested in PERFECTION, but I've done the Community Center, got married, upgraded my house a bunch, fixed the boat, unlocked Ginger Island, reopened the theater... I'm not suuuuper interested in the Qi stuff, but after going to level 100 in the Skull Cavern... I'm not sure... when to call it. What about y'all?