How much public use we have is a decision we can evolve based on our experience, to balance the benefits with the negatives. Our building classification doesn't force us to do anything in particular. In our case, I see the negatives as wear and tear, insurance increases, and the potential for some dishonest person to note that we have all sorts of good stuff in this usually unlocked building. I assume if we charge for use of the building, we will charge more than enough to offset the wear and tear and additional insurance. Theft and such is almost a nonexistent problem in Port Townsend, where many people proudly tell you they don't own a key to their house.
Meeting space is sometimes scarce in town.
Community building in our town - not being an enclave, but enriching the existing community. Raising awareness of cohousing in general, and RoseWind in particular, to increase our chances of community-minded people buying in, when we have resales. This is VERY important, since we are otherwise vulnerable in this regard.