Dinner buffets at Boma, Holywood and Vine, and Crystal Palace are 25.99, 24.99, and 27.99, respectively. This does not include tax and tip. If you eat at a counter service meal for your other meal that day, you will easily spend $10 to $15 on entree, drink, and dessert. Add to that a $2 or $3 snack and you have more than gotten your money's worth.
I was also worried about this, and because I'm on a very strict diet I feel more comfortable at a buffet than at other TS restaurants. I felt like we wouldn't be getting enough value for our money invested in the DDP, but that's simply not the case.
I'm still wavering on the ddp, but it's not a question of value as much as a question of not wanting to spend that much TIME eating!