I would be surprised if a lot of people made "just in case" ressies without first intending to use the reservation. The reason is the points have to be managed--you can't have your points tied up for something you have very little chance of using and preventing you from booking a trip you actually intended to take...
But as PamOKW says, I think things change over the course of 11 months ... In my own case, I had a brillant three year point useage plan (figuring out just when I was going to bank and borrow, et'c) ... I had the illusion that it was working for about 3months after I made my first reservation... Then, I found out we were going to be on another coast during the time of our reservation and I had to switch to plan B!

In order to switch to my alternate plan, I had to cancel the original reservation or I wouldn't have had any points to use!
This October, I booked BWV for Fri-Tu stay (day by day at the 11th month window). Well, it looked like there was no way I was going to get off work for a Friday arrival... So, I cancelled Friday and changed my arrival date to Sat... Now that I have cancelled, I've found out there is a slim chance that I can leave on Friday night after all, so I am kind of sad I cancelled. (Oh well. That's the way it goes....) At this point, I think I will just plan on a Saturday arrival.
One thing you could do in case your
DVC ressie doesn't come through is to see if you could book the other two nights on a cash ressie. It is a different inventory, so they might have availability and you would have a back up plan.
I'm keeping my fingers crossed that you will hear something soon on your waitlist!
-DC
