Jetstar, if you don't want to offer a cheap service, then don't!
I booked early to get to see the eclipse in Cairns on 14th November 2012.
I got a call saying my flight had been cancelled.
After only a few minutes of conversation it was established that Jetstar had cancelled my overbooked flight (how an automated seat allocating system can do this I don't know!) and now a new flight had appeared with the same departure time but a new flight number! It was, of course, booked out. I wonder how many of the passengers bought cheap tickets for that one?! My guess is none. The flight offered to me is at 6.00am the same day before I start work.
I just checked the others (and Jetstar) for a new flight on that evening and, because the day is close, the prices are all three times more expensive.
Thanks for nothing Jetstar.