It gave a new perspective of pushing, that´s for sure. It was a terrible match for tennis. Tennis is not primarily an endurance sport, we have cycling, marathon running, triathlon alredy. Tennis should be about who plays better, not who can run more. It´s a disgrace that two players play a five set GS final on hard court, and neither of them even has the balls to attack the net. The reason it lasted so long, was because neither of them tried to finish the points. That´s not tennis. Besides, I cant even see the commercial benefit in it. Fine, it´s easier for a casual fan to watch a match where the ball is in play, but surely a casual fan won´t want to watch a tennis match for what, five hours? And anyone who understands anything about the game, would appreciate more variety, more attacking.