This round's on me

I don't like the ice cream truck. It triggers my kids to beg me for over-priced items that when viewed rationally are little better than a dose of poison. So I started buying somewhat healthier options at the store and undercutting the ice cream truck by 75%. Now they buy from me. When 7YO ran out of quarters he was downcast until I explained that the five that he got for his birthday could buy 20 popsicles. I don't think he really understands why 1 coin buys a treat, but a slip of paper buys 20, but his reponse was priceless. It was like he had just won the lottery. I'm rich! I'm rich! He bought a popsicle for everyone.