Keep in mind that October 5th-6th is the weekend before RMAF, which would only give the vendors about a 2 day turnaround. (those that drive their gear to Denver like Hugh, Jim Salk, and Dr. Hsu might even be heading out on Tuesday) It would be impossible for Hugh and I to do both, and I bet many others would have the same problem.
I vote for November 2nd-3rd, which is almost 3 weeks separated from both RMAF and Thanksgiving.