This is exactly why we prefer the DDE. Having a sit-down meal every day is too much for us. When you factor in the dessert that you get with the counter service meal we just end up eating too much per day. Over the course of our vacation that can really add up.
With DDE we are able to order exactly what we want. We find portion sizes to be very generous so DD16 and I will often split an appetizer/entree/dessert. With the DDP we cannot do this as we wouldn't use up our TS credits, so we either eat too much or waste food.
Financially, we find that the DDE card saves us more than the DDP as we are not locked into that $40 per day per person and get 20% off the bill for what we do eat. IMO, the DDP used to be a great deal (although still too much food) when it included the appetizer and the tip. Since they have taken those away, however, and not reduced the price, it just feels like a rip-off to me. Yes, you can get your money's worth, but it's going to mean LOTS of food.
In addition, the longer we are
DVC members (11 years now) and the more trips we take to WDW, we find that we like to cook in the room more and more. Since we no longer feel the need to spend every moment in the parks, we enjoy the downtime in the villa on some nights. Plus, the cost savings is incredible!