I can see why someone wouldn't have understood what I was saying. The main issue is that we all have different dining habits, so saying one thing is better than another is difficult because we are not all comparing apples to apples. So, with that said, here was my reasoning......As we all know, the DDP is a fixed price, whether you order dishes that are on the high or low end of the price spectrum, or whether you take full advantage of the offerings (dessert, snacks, etc.). So, supposing (and this is a big supposition because I do realize that some people eat multiple table service meals a day) you eat one table service meal per day (which is what the most popular DDP offering includes), you are MORE likely to make good use of your money spent on the DDP if you eat that table service meal at dinner. I say this because dinners generally cost more. Eat a nice steak for dinner at a more upscale restaurant, and you will definitely be saving money by getting the DDP over paying out of pocket (even with the TIW card). Eat a salad at lunchtime, and you won't be saving with the DDP.
I worked it out many different ways for my family - with dessert, without dessert, eating table services at lunch, eating table services at dinner, etc. I worked it out so many ways that my head was spinning. In the end, I basically concluded that the savings are so minimal from one plan to the other (given my family's dining habits) that it was hard to declare one to be "hands down" better than the other. The only scenario whereby one will be clearly better than the other is when my sons cross from "child" to "adult" in the DDP pricing category, as there is no way that they will eat enough to justify an adult DDP price. At that point, TIW is definitely the way to go.