The food & wine gift cards are the same as regular ones except they just have a F&W Logo on the front and are attached to one of those key chain type wristlets (not sure if they have a name), if you have money left over on the event ones you can use the remainder anywhere that takes gift cards.
Using Gift Cards for food is a good idea, I might have to think about that, I was thinking I would have to carry a lot more cash this trip to make it easier when we all eat together, last year it was a disaster since we all basically were using our debit bank cards so come time to pay the check usually DH picked up the tab each time which was ok since Ddil got the CM discount at TS Restaurants and Stores and had gotton us into the parks for free.