Ah, I think I was just confused as to how many the "default" was. But I did notice that the Charming Bargainer upgrade isn't working, the Greasy Spoon's Gut Buster meal always costs $18 even after purchasing the upgrade.
Oh, and random thought, I think it'd be nice to have a toggle to not encounter random partners when you visit a place, in case you're sticking on custom characters or just want to focus on stuffing yourself, haha.