Conferences are sooo expensive. I don't even know if they provide any value for money because the accomodation is often not even included. So what do we get for our money? A CDrom or book with the proceedings, a biro, a delegate batch, the chance to listen to presentations with audiences of up to five people but not much else? Please don't kill me now but I usually check where the conference is, and then just walk in without being an official delegate. Saves me a lot of money, although I still have to pay for the accomodation. Never been asked why I don't wear my badge. Obviously, I am actually registered when I present myself.