I think the guys in Newcastle did a fantastic job getting Pinfest off the ground and then running it successfully for three years.
If I were considering a similar venture, say in Ballarat 
, I would give the organisers of Pinfest several phone calls over a couple of weeks and pick their brains. There will be glaring mistakes that they have made and could be avoided and I'm sure they would be able to offer a myriad of advice.
Piggybacking onto an existing event in the city also makes a lot of sense. It would lessen the risk for you and boost the event for the existing organisers - such as a boat show, car/hotrod/motorcycle show, etc. These events already have a marketing machine in place and already have contacts at media, venues, printers etc and I am certain would only be too happy to have a pinball event tacked on to their existing show.
Happy to help and support in any way possible.
Attaching it to an existing event is a good idea
The more I think about it, it would be easier to do this in Ballarat or Geelong, rather than Melbourne
Smaller populations would make it easier to advertise to reach an audience
Ballarat or Geelong would both be great places to do a event like this
it would be great to actually get out of the burbs and go somewhere nice for a change
