Well.. If the price goes down, you can take advantage of those lower prices. If the prices goes up though..... Well, then you will be kicking yourself. Basically it you would pay to go on vacation for the prices that are listed now, book them. If you dont want to pay that price, then wait, knowing that you may not get a better price, or book somewhere less expensive then change if the Poly comes down.
edit: WHEN in Nov 2009? If it's around Thanksgiving, I wouldnt expect a lower rate as that time is very busy. If it's other weeks, then there very well could be some discount available..