If you tend to spend a lot of time at the hotel when on vacation, then you'll get more out of it. If you go to Disney to "DO Disneyland" and spend long days in the park and little time at the hotel, it wont be worth it for you.
We stayed for 5 days in the fall of 05. We ate breakfast daily. We only made it to the evening snack time once. We took some water and pop to the parks, but didnt like packing it around and drinking it warm. We didnt spend enough time in the room to use the DVD player and DVD's.