I've rented for a week in January, intermediate car with either National or
Alamo and I don't ever remember paying more than $105. I assure you the rates will drop. I and could not agree with
n2mm enough, if you lock in a price with priceline now because it makes you feel warm and fuzzy inside then go right ahead. However do not visit these boards after Jan 1 unless you want to see a bunch of people rejoicing over getting a better price than you, often much better.
I just went back and checked my Credit card statements for my 2011 trips:
9 day rental Sept 2011 LAX (DL trip) Alamo intermediate $97.27
1 week rental Jan 2011 MCO Alamo intermediate $101.25 (it killed me to pay $100+)
1 week rental May 2011 MCO Alamo intermediate $64.95