Man, I'm sorry, and I know we're all biased here, but that really doesn't seem like that impressive a list of accomplishments/evidence for Melbourne being the sporting capital of the world. I have no doubt that it is a terrific sports city with a rich history, but I'm sure that a dozen other cities across the world could boast an equal or even better list than the one you posted above.
Taking into consideration that we aren't necessarily the most populated city in the world, I think we're pretty impressive.
Again, I do think if we were to identify one city that might surpass Melbourne in terms of sporting culture/history, it would be Paris. Paris is servicing a much larger urban population though and is much easier for the broader population of Europe to travel too.
To think that although we remain so far away from the true West, that we have been allowed to host international sporting events for so long and still so frequently, and have an entire code of sport centered around our city, I think it's quite amazing...and of course I'm coming into this with some bias, but I will remain a brick wall until someone suggests someone other than Melbourne. You all keep maligning me.... but you're not challenging me.
Wow.
As for my own perspective, I don't think Melbourne's quite the sporting capital it's cracked up to be. Sure, it has stadiums coming out of its arse and everybody goes to every Aussie Rules game as long as the Demons aren't playing, but try talking to a Melburnian about any other code of football. Melbourne Storm won the rugby league and half of Melbourne didn't even know they were in the final, or that there was a final going on. Rugby union? Hahaha. I sometimes feel I'm the only person in Melbourne who watches it.
Plus, I don't want Melbourne to host the Olympics again. I'd rather see the money spent on things we actually need.
The Aussie Rules obsession down here might be considered to compensate for our "apathy" towards both forms of Rugby. Mind you, that "apathy" is probably overstated. Despite the poor run Melbourne Storm get in the press, they still attract an average regular season attendance of between 10,000 to 15,000. Not a bad turn out to the (comparatively) poorly facilitated Olympic Park, and I think that's just a wee bit short of the NRL average attendance per game.
Rugby Union cops it rather poorly down here, though I think our Melbourne Rebels side attracted an average 3,000 before that sole season of that national league ended a few years back, and that average matched most of the other sides if I can recall correctly.
I'm in no hurry for an Olympics, though I expect we will bid (and probably successfully) sometime in my lifetime. A national World Cup is a higher priority from a sporting point of view, and yeah there is significant urgency to spend some cash on our laughable public transport system, and sort out those depressing hospital waiting lists.