USA was paying $3.5 M per year for the rights. This year, they offered less, and the FFT refused. There was a big mess with the company marketing the TV rights, and as it dragged on, the price dropped, because channels had less time to properly advertise the event. ESPN wound up grabbing it for $1 M this year. They have the advantage in that they can promote it by showing highlghts of the lead-up tournaments.
The good news is that we now get 5 hours live every day, instead of 3 hours of mostly live on USA. Plus, there is that extra 2 hours on tape. Not sure if that will be a highlights package, "match of the day", or some combination thereof. It will probably include a lengthy rerun of the Agassi/Sampras/Roddick match of the day.