Amazon offers its Amazon Prime members the Yoo Hoo 6.5-oz. Chocolate Drink 32-Pack for $9.54 with free shipping ($0.30/box). (Non-members can spend $25 or more to get free shipping; otherwise it adds $14.05.) That's the lowest total price we could find for this quantity by $10, although we saw it for $1 less in December.

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. (Note that currently there's a waitlist for Amazon Mom.)