Damn few folks have ever asked about the 200-lb blow system... but far more will ask questions that are NEVER covered in the sub manual! There are lots of aspects in this category: historical significance of the US Navy fleet sub in the Pacific war... how it was constructed, the history of how the Navy selected commanding officers, the whole story of the bad torpedoes, the cultural aspects of the crews, the workers who built them... and on and on and on....
Paul is right...and so is Darrin. For me, in creating the BATFISH website, it was about researching the history, reading the books, getting the patrol reports, learning the crew's names...then it was about submarine operations in the Pacific and how the BATFISH did it's job. After that, I realized just how complex the WW2 fleet boat is and I am now learning about how the sub works (or worked).
Maybe it depends on your role at the sub and if you interact with tourists. For me it was history first because people visit the website probably more than come to the park (I'd have to check the numbers). So the website contains BATFISH history and maybe some day I'll add more info on what an IMO pump does. There are a few subnuts like the people here that want to know what makes it tick.
I guess what I'm trying to say is that everyone has a role, whether curator, tour guide, webmaster, or light bulb changer. And we all have a common goal. Our favorite sub. Bottom line...I think everyone focuses, one way or another, on restoration and education, maybe not in that order. Those should be our top goals IMHO. Without either one...our history disappears.