I was in a similar situation in the San Francisco Bay Area. I added myself to the waitlist, and was placed at a location about 80 miles away almost immediately. It's not my ideal location so I'm trying to get some more information to see if I can change centers to a closer location. But from my understanding, if you are on the waitlist you are basically guaranteed a spot within the 100 miles radius, it just might not be your preferred location. Hope that helps!