I'de guess to say that the hobby here is like it is anywhere else, having more adults involved in it, then youth. With the price of kits these days, I couldn't imagine ever being able to afford them as a child. I use to buy around one kit every month when I was young mainly Monogram kits. There are pleanty of hobby shops in or around Sydney as well as about 4-5 modelling clubs including IPMS NSW, and most of the members are over the age of 30. I think with all the video games and PC, internet games, most young people are enjoying those as hobbies. As far as the hobby's popularity goes, it is doing pretty good, I have met some of the most talented modellers over here and one of the most popular web sites in the World www.hyperscale.com was created and is run by a fellow Australian Brett Green.
I am glad you had a chance to visit my web site, I wish I could afford to register it with a domain name, that would rid those annoying pop ups, which I have come to realize they are not there as adds, rather to annoy people enough so they end up paying for the upgrade to rid them.
Cheers,
Anthony Manzoli