In Reply to: Jakarta, population around 28million posted by cfb on Sunday, 27. November 2011 at 15:24 Bali Time:
The last census in 2010 had the population at 9.5 million. It is predicted to reach 10 million by 2030.
http://www.thejakartapost.com/news/2010/08/28/after-census-city-plans-95-million.html
It officially has the worst traffic in the world. I personally wouldn't go there for shopping, it is NOT a western shopping mecca. You could be very disappointed and frustrated. Hong Kong is the place to shop for the stuff you mentioned. Or the USA, which is way cheaper than Australia (assuming that is your benchmark)