The DL dining plan is not like that of WDW, as is not recommended. You pre-pay for dollar amount vouchers, and there is no savings. If you pay $100, you get $100 in food vouchers. The other downfall is that you do not receive change, so if you use one of your $15 vouchers on a $13 meal, you will lose the remaining $2. There is only one instance in which you could save even a few bucks, and that's if you bought the vouchers, but plan to go during a peak time, like Christmas, when the price of the character meal is higher, but even then, the savings is a few bucks at best. If you would like to prepay for meals, we always recommend putting money on a Disney gift card instead.