The ddp is $42/adult $12/child in regular season and $47/adult and $13/child in peak season.
For a family of 4 (2 adults 2 kids) that is $108/day regular $120 peak
for 3 adults 1 kid its $138 reg, $154 peak.
A sit down table service of 2 adult meals, 2 kids meals, regular soft drinks, and 2 desserts will easily run you $100.00 during dinner. Our cheapest sit down dinner totaled $75.00. Our cheapest CS meals was still $40+
Yes there are ways to save on purchasing oop (splitting meals, buying less drinks etc), but for us that really isn't worth it (since we wouldn't be able to split meals as no one would agree and sharing drinks just leads to children screaming at each other

) I also like being able to go to a place and not even glance at the cost of an item

. If I had to pay oop, my guilt would check in and I would be ordering something cheaper just for cost instead of the really expensive item I really wanted.
When I added up my daily receipts from last year, we averaged a cost of almost $200.00 in meals each day (1 cs, 1 ts, snacks minus what we paid oop for extras like appetizers or alcohol) for an oop cost of $108.