nospam49 - you miss the point.
Irrespective of how many sports events Sydney has, it has a long(er) and proud(er) history of supporting test matches in rugby league.
Let's go back beyond the last ten years for a moment (obviously pre-dating the Super League war and its residue):-
Sydney's international rugby league crowds throughout the decades (sample only; all played at SCG)
1910 - Aus v England 42,000
1914 - Aus v England 55,000
1920 - Metropolis (Sydney) v England 67,859
1924 - Aus v England 50,005
1932 - Aus v England 70,204
1936 - Aus v England 63,920
1946 - Aus v England 64,527
1950 - NSW v GB 70,419
1951 - Aus V France 67,009
1954 - Aus v GB 67,577
1955 - Aus v France 67,748
1958 - Aus v GB 68,720 (& 68,777)
1962 - Aus v GB 70,174
etc. etc.
Need I go on? How the mighty have fallen.
PS. Remember that a "comfortable capacity" for the SCG during most of this period was around 48,000.