How many days are you going for??
How many people in your party??
How much will you save on each bottle plus food over that period??
I Have never had grocery delivered to resort, We have had dinning plan on our last few vacations so use up snacks for some drinks, like getting large soda to share at counter service and one bottle of water to use through the afternoon.
Cab's seem to be an expensive way of getting a few things, I would bring with me some things such as cookies chips and chocolate. but the rest for the park just get it in the park.Sure things are tight right now but come and enjoy your holiday
(if you can through a little cash around)