Because That's Not Paying Enough to Live There

Guy: I'm going to Chicago this weekend.
Girl: Jealous.
Guy: Want me to bring you back a hot dog?
Girl: Minus the dog.
Guy: Polish sausage?
Girl: Vegetarian.
Guy: Sausage pizza? Italian sausage? Sausage smoothie?
Girl: Totally.
Guy: Why doesn't someone open a sausage smoothie store in Chicago? They'd be a millionaire.

--F train