Yes, I was curious to "crunch the numbers" from our recent trip with the Free Dining. No flames, please. I know, I know- it was FREE! I was simply curious, that's all.
There were nine of us: 6 adults, 2 children and 1 "free" child (under 3)
$ 2146.23 Total "bills" for TS, CS and snacks (6 Adults + 2 kids x 6 nights)
$ 1499.52 Total had we purchased the Dining Plan
$ 646.71 Difference
note: The total of our "bills" would have been higher since the last night we traded in our final TS dinner (for 9) for 5 CS meals and a lunch for 3. And we stayed with our original restaurant choices that we made before the free dining promotion was announced. Also did not always order dessert.

There were nine of us: 6 adults, 2 children and 1 "free" child (under 3)
$ 2146.23 Total "bills" for TS, CS and snacks (6 Adults + 2 kids x 6 nights)
$ 1499.52 Total had we purchased the Dining Plan
$ 646.71 Difference
note: The total of our "bills" would have been higher since the last night we traded in our final TS dinner (for 9) for 5 CS meals and a lunch for 3. And we stayed with our original restaurant choices that we made before the free dining promotion was announced. Also did not always order dessert.