I'm glad to see a lot of input on this. Thankyou Scarecrow and the wolfpack guys for backing us up on this. Atreyu stayed over at my place the night before we headed up there so that we could put together the props and go over the objectives for each team.
We periodically and obsessively checked the game thread and the forums up until the time we got in the car and left to go down to the field. We kept an updated list of attendees that we were expecting. Time and effort was put into getting at least a ballpark figure of attendees. As far as we knew, we expected 41 players on Saturday morning. About 20 of those people showed. We got the impression that these people saw this game as a backup plan rather than an commitment.