They definitely need more space for their day to day operation. In their current spot, they would need to swap all the woodies out and put DMDs to get more people and more $$ coming in. But their focus is on being a museum, non-profit, probably a major factor in being able to stay open as they currently do. Don't get me wrong, I like seeing and playing the older games / history, but it's not something I do every time I visit.
See everyone at the last PPE at the Marin Civic Center! As others said, it is a nice venue, so visit this year if you haven't before!