And one more thing to add- I think especially as we get later and later into the summer, people on waiting lists lose interest in attending those schools (and are probably less likely to change their plans), so they don't continue their contact with the school. If you are willing to wait it out, I'd keep in regular (i.e. every 3-4 weeks) contact with the school, so the school knows that you are still interested and actively pursuing them. That way, when they go to offer admission off the waiting list, they don't have to make 5 offers of admission from the waitlist to get 1 student- they can make one offer to get one student (hopefully, you!), which gives them a better yield. That's just from what I've read in some books. It makes sense to me.