A debate was had a few years ago on the USFooty forum about whether to charge for an amateur event. I agree it may actually undervalue it by not charging. If the grounds are enclosed then a $5 or less entry fee to see a double-header (the way they were staged last time) wouldn't be unreasonable. I doubt it would scare too many people away, and most casual walking-by spectators probably wouldn't go into a stadium either way (different say to Murphy Reserve where some games were staged last time). And ultimately the more the event covers its own costs the more money will be spent on it.
Look at the Community Cup at St Kilda's Junction Oval.
Every year they pack the crowds in - nearly 23,000 people. And it is only an amateur grassroots footy event. Sure there are a couple of D-grade celebrities involved, and some fat and very unskilled men and women but that is about it.
Sure, it is a charity event, but they recently went from gold coin donation to $5 entry fee and it had no effect whatsoever on the crowds that turn up.
I'd love to see scenes like these at the IC.
For the Community Cup, they have bugger all promotion, just a couple of posters around St Kilda. But that's a damn site more than I saw to advertise the IC in 2005 (the AFL record doesn't count, as it only reaches a limited audience of people who only watch A grade footy).
I believe that the IC could be the same if the AFL put in a bit of actual effort promoting it. Just use their contacts to put a poster in every amateur footy club in Melbourne for example. And if they asked for a gold coin donation, it could go to aid efforts in countries where footy is played (ie. PNG, Samoa, Tonga, South Africa etc where Ausaid funds are currently being spent on footy and social development), I'm sure that people would think that it is a great cause. The awareness amongst amateur footy clubs could become interested in offering scholarships for overseas players etc.
I noticed in this year's Community Cup record that Demetriou had written a letter of appreciation for the Cup's efforts in the local community with lots of guff about what the AFL does for grassroots footy. Well he could certainly take a leaf out of how they market that event to the average punter rather than simply grandstand.