Lacking return for the effort. And this is as lame as it gets but your competitors - especially some agents of a company we often discuss, will take your display and throw it in the trash can.
I live in a private community with a community center. We have a huge bulletin board and a table where local business owners can display marketing material but you must live in the community. I had my business card, flyers and some postcards. About a month ago I check in on them and they are all gone. Vanished. However, on the bulletin board is a "NASE" card where mine used to me.