We are a little concerned that there seems to be quite a number of names on the hotel reservations list that have not registered for the convention itself. It would seem that quite a number of rooms are being held by folks who have yet to fully commit to the convention.
The same thing occurred in Lexington last year and I suspect it's a fact of life for convention organizers. Unless someone wants to register for a convention event with limited space; like the time trials, or the pre convention tour, they want to lock in a hotel room then register later.
As many conventions as I've been to, it has always been that way. It is worthless to have a rental car, registration, and airfare in place if you do not have a place to stay.
Customarily, people book their hotel first, which is easy to cancel if the other pieces do not fall into place or plans change unexpectedly. Another reason that people do not register early without a discount incentive etc. is because if plans do change the money that was paid for registration is not refunded until after the convention books are closed, which is not Sunday afternoon after the Awards Ceremony.
In my case, I try to have all the pieces in place by the final postmark registration due date, which also means that we don't register for anything that is space limited.