Link is from the end of their survey after completing the Sydney event on the weekend.
Melbourne event is on March 21 & 22, 2015. $50 saving if you wanted to sign up for Melbourne event now. Prices go up to $215 closer you get the actual event. Check Melbourne prices for an example.
$99 early bird is the usual price, so it's $10 less than the normal cost if you are the kind of person to buy during the first week of registration.
People actually pay to do this thing? It should be a form of punishment.