I also agree that some food inside the beer area would have been a good idea (and they would have made a killing).
As a vendor I'd suggest some vendor list with booth addresses. I had a lot of people asking me if I knew where XYZ was and were upset that it wasn't in the rally book. My explination to them was that the books are printed far in advance and vendors get added/subtracted/moved up to rally time so it is hard for the club to do that.
Maybe some kind of 8.5x11 paper with a map on one side and a name/location on the other side handed out at registration, or perhaps a board like you see in malls with a map and listing near the Country Store so people can reference.