Along similar lines, I too have noticed that there are fewer deals to be had in the last few months compared to the Fall. As more people discover the site, prices sometimes exceed the cheapest published fares (basing this on fares to Europe). This may work for people who cannot travel on days those fares are valid, but if one is flexible, I have not seen any great fares to Europe of late.

In addition, they will sometimes allow a large number of departing cities. Some of these may have higher fares than one's own, in which case the fare is (I would guess) driven up by folks from these other cities.

Just my 2 cents.

Their custome service was very responsive though. I exchanged 3 emails with "my" rep in the same day, confirming my reservations.