I've been there, I've done a two day driving course there, I've taken the tour, I've seen the VL with the special peter Brock energy polarizer on it that's only done like 5km's in it's life that they won't sell you even if you turn up with an open chequebook. Been there done that.
There is no such thing as a free lunch.
Edit: almost forgot. It's always free to go to the gallery. Provided that their open.
and the world is flat.