I grew up with prizes in my cereal. There weren’t prizes in EVERY box of cereal but frequently we would rush to open a new box that promised some nugget of disposable plastic fun and goodness. I tend to believe that most boxes of “kid” cereal did contain a prize in each box. I don’t really know because my mom preferred nutrition over the allure of artificial color, flavor and roof-of-mouth-scratching sugar-coated-glee.
Read about our experiences with the comeback of breakfast cereal prizes [at Parenting.com].