Even if you are fortunate to live near an area with a view of the night sky that is not heavily light polluted, it is often exceedingly difficult to find a place where you can go to set up a telescope or lawn chair for observing at any hour of any night.
One service a dark-sky community could provide is a safe public place where anyone can come to view the night sky.
A nominal fee could be charged, because, after all, the dark-sky community is going to need to generate revenue in a number of ways so it can continue to thrive. An annual membership fee and single-use fee similar to what is done at state parks and national parks would be a good model to follow.