I'm sure they have two chairs each season both in 2012 & 2014 I visited Dreamworld during production and they had one in the big brother cafe as well as the one that was in the BB house.
OMG! What a great find BB Critic. Was interesting on reading the goss and seeing the 'secret' photos to the lead up to the very first series. The show would have virtually been unknown to most of Australia back then and only a very small amount of people would have found that website in early 2001 if they decided to search (and had the internet!) on this mysterious show Ten were promoting which would soon become an phenomenon!