I was thinking of Falls in Victoria, which sells out more or less every year.
The festival circuit is in for a tough few years. I suspect more than a few will disappear over the next 5 years but I think this will represent getting back to good value for money for the punters.
Just today a friend and I were comparing the BDO line up with years gone past. In Perth, the attendance this year is expected to be 24000, down from the usual 40000. Why? For close to $200, the line up is shit!