Plus, you will probably have a better time if you're fully healed and ready to run!
I know it's a bummer but depending on how long of a trip you can take for Princess, you might be able to swing getting to go to
Festival of the Arts and/or Flower and Garden Festival which might make up a teeny bit for missing Food & Wine! Not exactly the same, but there are some great food and drinks - I actually prefer Flower & Garden to Food & Wine.
Or like you said...you can always come for
just F&W and Halloween!