Depends on where you want to eat and how much. My family is not big eaters but the dining plan was still a good deal for us. We booked a lot of character meals and nice restaurants to eat at. I added it all up at the end of my trip and sometimes we spent more on one meal then the dining plan cost us for the whole day. Now one could argue that my meals would have been cheaper if I was paying for them b/c I would have ordered less food. While that is probably true, we would still come out on top! I enjoyed being able to eat in restaurants that I would not normally pay for otherwise. Now, the value of the dining plan has gone down some since it doesn't include an appertizer and gratutity for your Table Service meal. But it's still a good deal for us. I've added up what I would probably spend on meals and it's more than the price of the current dining plan. Now don't get me wrong here, you could definitely spend less money on food if you wanted to. But I enjoyed eating at nice restaurants, giving my family a variety of foods, and of course the character meals were great for my kids. So while I could spend less on food if I wanted too, I chose not too. Eating in the restaurants has become part of our vacation. We looked forward to some of the characters meals more than some of the rides. Plus, eating in an air conditioned restaurant is heavenly in the hot Florida sun. The dining plan is part of my vacation - I enjoy picking out my favorite restaurants (and trying some new ones) and then planning my trip around our reservations.
It would also depend on how much time you're spending at Disney. If you're only going for a few days and what to get in as much as possible than you're probably not interested in spending alot of time eating. Our last trip was eight days with two small children. I personally wouldn't do it without the dining plan. I loved the little break eating gave us and I liked the fact that I could give my kids something different to eat other than the chicken fingers, hot dogs, etc.
Basically I haven't given you an answer. You need to figure out where you want to eat, how much you want to eat, and how much time you want to spend eating, and then see if the dining plan is right for you! Good luck with your decision and have a great trip anyways!:wave: