Seminars promote your society. People are looking for their ancestors in your area. Letting them know you are an active society promotes membership. You have everything to gain and nothing to lose. We have never known a society to lose money on our seminars.
Most societies make money for their library fund, etc.
We can help you organize and promote your meeting. Ideas spawn new ideas. Build an action society. It's good public relations. Promoting a workshop acquaints the community with what you are doing and involves them in awareness, preservation and recording of family and local heritage.