Pancake Parlour is starting a new rewards program and if you sign up now you get 50 silver dollars. A short stack is worth 110 ($12.60), an ice cream is worth 95 and a sweet choice is 160 ($17.80-$20.20).
So 50 silver dollars are worth ~$5.56 - $6.31 if I've calculated it correctly.
I foresee problems from telling people they have "X dollars of rewards" when it's only about 10%