I have a similar question, but kind of the obverse. What are my chances of losing some considerable saving by waiting to book 2010? Ngaire has said somewhere that the free air *may* go away after March 31st, and the free excursions might go away at some point later, but maybe not. And the early booking savings might change.

My dilemma is that I really don't want to book Alaska June 2010 this early, although I will if I have to. I guess another consideration is getting the choice cabins on Navigator, minimum balcony. Again, I think the risk is hard to calculate.