I read on another Disney info site the cost is $5, includes a $2 refundable deposit--so at the end of the day $3. It may have gone up slightly. One thing to keep in mind...I once rented the locker when I had a baby in tow to put extra formula and other things I didn't want to drag around. Since the lockers are right at the front, it never was convenient for me to go all the way to the locker to get it. BUT in a pinch, it would have been easier than a trek back to the car or hotel.