Amazon offers its Prime members the Cinderella: Diamond Edition on Blu-ray / DVD with Digital Storybook for $15 with free shipping. (Non-members can spend $25 or more; otherwise shipping adds $2.98.) That's the lowest total price we could find by $12, outside the mention below. It features a personalized digital storybook.

A close price: Target offers it for $15 plus $2.79 for shipping. (Get free shipping on orders of $50 or more.) Sales tax is added where applicable.

Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.