Buy now or later? Planning for Summer Travel

If you are one of those who are planning a vacation this summer and waiting for the prices of airfares to drop, you might be interested in the discussion of buying strategies in this New York Times' Practical Traveler column, Airfare Debate: Buy Now or Wait? This article discusses the pros and cons of buying now or waiting, tracking fares at different online sites, and offers these words of advice:

But predicting airfares is a bit like forecasting the weather. Even with the most sophisticated technology, you can still be way off. Ultimately, travelers must decide for themselves when to push the buy button.

For my earlier discussions:
Orbitz's New Marketing Tactic: Full Disclosure of Actual Pricing
Frugal Traveling Strategies