I think you could definitely go and have a great time with only $1500. I recently helped a good friend plan her trip with her family of 6(2 adults, 2 kids over 10, 1 child, and an infant), and they actually brought money home!! She told me the biggest money-saver for them was the collapsable cooler(with wheels)I suggested she purchase at Walmart for @$19. She packed it in her suitcase(folded), and used it in the room for drinks, milk/juice, and fruit, using the free ice from the hotel's ice machine. She also took this cooler to the pool once or twice, filled with fruit and drinks for the kids, so they did not keep running to the food court for snacks(and her older kids were 15 and 13). The cooler returned home as a piece of checked luggage full of dirty laundry! I suggest you give each child a set amount of spending money; $50-75 each should be plenty for a short trip. We once gave our kids a choice of getting $75 each, or getting $50 each and a ticket to Disneyquest. Our 3 older kids(then 13,12, and 10)chose the $50 and DQ tickets. I would use this as a rough budget:
Towncar(w/grocery stop)....$120-130(including tip)
Groceries for room(snacks, quick breakfast foods like cereal, bagels, milk/juice, fruit, and drinks/bottled water)...$75-80
Tickets(4-day hoppers from the
Disney Store, with advance purchase discount)................................................$645.39
Food on park days(I suggest $100 per day)......$400
Lunch on last day (maybe at Downtown Disney)...$60
Souvenirs($50 for each child-this is a budget trip)...$100
I think you could spend less than $100 for food on 1 or 2 days. At Animal Kingdom, I suggest you purchase the lunch certificates for $12 each($38 for 3) that include your meal, a drink later, and a snack(popcorn or ice cream). The kids price is $6, if your 12-year-old prefers kids meal items(chicken fingers, pizza, etc.), and it, too, includes the extra drink and snack. If you ordered pizza to eat in the room or by the pool, and paired it with a small bag salad or fruit for dinner one evening, your total cost would likely be $20 or less for the meal(and my kids love doing this, as did my friends' kids). You won't have a car, so I suggest you eat a nice sit-down lunch each day(less expensive than dinner), and food court/counter service for dinner. Definitely eat breakfast in the room most days to save both money and time. Check out Deb Wills' site for current food prices, and let the kids help plan the food budget. We once put our oldest daughter in charge of the entire budget for the week with great results(she was 11 at the time); your kids are definitely old enough to offer some assistance and input. As long as you have the big items covered(flights, room, tickets, transportation), I've found the food budget to be fairly easy to cut down a little if needed. Good luck, and have a great trip!