Diane,
How big is your family? How are you only spending that a day? If you are eating out at a QS and TS each day.
Just the 5 of us at a QS is around $50 and $138.00 for a dinner at Chef Mickey's. That is not including our 5 snacks we have, which is usually between $20-$25 a day.
I feel it pretty much is a wash for us. We would be spending it either way. I like the convienence of the DDP not having to carry tons and tons of cash around.
Plus the fact that I am not cooking while on vacation. I don't like to cook when I am home.