It's also where on the ground they get their frees, often in front of goals, and at the time of the game - where it's there to be won, like against us in Derby 1, 2018, while frees down the other end to the other team are often not paid, and when they are, it's usually after the game is over, to even things up.
A mate of mine at the western end of Optus said that Margetts, after paying a free against Hurn in the first derby, a few minutes later and in full view of the crowd, ran up to Hurn, patted him on the arse and whispered something in his ear. Wish someone caught that on camera.