Err, call me stupid here, but as Greece had merely stated a requirement for 60-90 aircraft, why will the cost of ours go up?
There was never a contract for the Greek jets and the price of our Tranche 2 aircraft has been agreed purely for those aircraft to be built for the four partner nations. I thought it was common knowledge that the Greek deal would be re-opened after the Olympics, but maybe it wasn't!
And of course there's absolutely no reason that the Typhoon won't win the new competition...