What am I missing, why is this useless? You can specify your budget as the max price, and the "Thinking about" to August 2010. Granted, you can't specify "mid

What am I missing, why is this useless? You can specify your budget as the max price, and the "Thinking about" to August 2010. Granted, you can't specify "mid-August", but within a single month, usually airfares only change based on the days of the week of both segments.