Overly expensive seats?

Spectors at the centre court at Wimbledon were in for a massive disappointment. Matches involving previous champions Roger Federer and Novak Djokovic were both aburtply cut short when both of their opponents pulled out injured. John McEnroe who had been commentioning on the Federer match suggested that any one who did the same in the future should on receive half the prize they would be given. Given how expensive seats are at centre court perhaps he has a point.