Of course it's worth a drive up for a look.
Its a beautiful day in Coona and on the mountain today.
The inner Solar System Drive,
Cool mountain environ's,
Close up look at the AAT or what ever it is now,
Great coffee in the Exploratory and a cheap tour of the displays to get a grip on modern (world leading) research astronomy.
What more could you want?
Oh, and don't forget the 1km drive into the Warrumbungles National Park to Whitegums Lookout for a look over the volcano.