The best community managers make cool things happen. They leverage the power of a connected group to gain exclusives.
You might get exclusive permission to live-stream a relevant conference, or get discounts for members.
You might get first look at future products and review samples from companies, or help design them.
You might be able to ask members to send questions to celebrities and get replies.
You might be able to contribute a weekly column on behalf of the community in a relevant magazine.
Not everything you try will work, but that doesn't matter. What matters is every day you're trying to push the boundary and provide more value to members. These bonus gifts are so important, they encourage more members to join, increase your community's visibility and ensures members stay active.