SO the answer to the big question......
Was the Deluxe Dining Plan worth it?
For us....... yes! and not just because of the convenience:
7 nights Deluxe Plan cost $1154.79 for 2 adults and 1 child
Actual Meal/snack cost $1660.06
I used the following to arrive at the actual total:

Will return next year

Not returning next year

Maybe

Chef Mickeys (Dinner) = $75.00 approx from allears - 3 meal credits

Chef Mickeys (Breakfast) = $59.00 approx from allears- 3 meal credits

Liberty Tree Tavern = $75.00 approx from allears - 3 meal credits

Narcoossees = $185.00 approx from allears - 6 meal credits

50s Prime Time Cafe = $78.03 actual bill total - 3 meal credits

Cape May Buffet = $67.00 approx from allears - 3 meal credits

Norway Princess Breakfast = $86.24 actual bill total - 3 meal credits

Coral Reef = $116.94 actual bill total - 3 meal credits

Pecos Bills = $16.18 approx from allears - 2 meal credits

Donalds Safari Breakfast = $69.48 used Park Fare bill total - 3 meal credits

Yak & Yeti = $106.39 actual bill total - 3 meal credits

Room Service = $100.00 I cant find a menu to do an estimate - 4 meal credits

Cinderellas Castle (Breakfast) = $119.68 actual bill total - 6 meal credits

Tonys Town Square = $78.39 actual bill total - 3 meal credits

Spirit of Aloha Dinner Show = $137.00 approx from allears - 6 meal credits

1900 Park Fare (Breakfast) = $69.48 actual bill total - 3 meal credits

Le Cellier = $115.02 actual bill total - 3 meal credits

Contempo Cafe = $16.18 used the estimate from Pecos Bills since I cant find a menu - 2 meal credits

Caseys = $6.59 approx from allears - 1 meal credit
Snacks = $84.00 (42 x $2.00) I dont have the actual cost of the snacks so I used $2.00 each which is a conservative estimate I think.
Total = $1660.60 I think this is a low estimate as it doesnt include the tax on the meals where I used allears to estimate. Next year I will try to keep better accounting.
Before I did the math DH argued that we should consider that if paying OOP we would rarely order dessert and probably would share an appetizer. Also, right now we would probably rarely order DD5 her own meal at TS restaurants. Because DD5 is such a small eater we can easily feed her from our plates. But perhaps next year DD5 will eat more (hopefully). But since we eat at so many character meals that factor is not a huge cost difference. Since you pay for everyone at buffets even if they eat very llittle.
But even factoring in these considerations I think we would still save money on the DxDP. After showing DH my rough maths he has agreed that we will try the DxDP again next January! That makes me super happy. I am working on my potential January 2011 ADR list already.
