Most expensive place in the world to live gets you:
-Worst traffic
-Most expensive tolls in the world, and they're every where... $2.50 + $.55 cos your tag isn't going to work just to use a farking ramp.
-Crap hospitals
-3rd world infrastructure
-REALLY bad public transport
-$5/hr parking at the beach
-An army of parking rangers with fine quotas
-4,600,000,000 people (antisocial crowds of retards every where you go)
-Hands down the most inept government any populace has ever had to endure
-Cops hiding in the bushes with radar guns

Seriously I can't think of anything good Sydney has that another city doesn't offer... unless we include 1 Opera house only the rich can afford to use, and a congested iron bridge you have to pay $4 to cross.