I went to something in Melbourne quite a few years ago, and it didn't impress me really. Got to chat to a few people I knew that were competing, (but I also knew they were busy) a few displays to look at, (much like a shop) and queues too long for me to wait for food.
I did get to meet Urban Griller there at a display and had time for a quick chat, but he also had to chat to possible customers.
A lot of people love this kind of thing, and probably great if you're a competitor, but it just wasn't really for me.
Whatever it was, I think it was at Flemington racecourse. But can't remember what it was called.