Who's going to see it? A portion of the city I live in. Why do it? Potential for something bigger. Possible sales of course, but to embed myself as the local author in my city is important to me. Also, it's a life event I post here, in my blog, on all my social networks and can forward to my mailing list.
No press is bad press no matter how small. It may do absolutely nothing for you as an author, but when you don't take that shot, it may never come again. Why live with what ifs? Just do it and tell your friends and family and fanbase it happened. Rather than constantly bombarding them with sales pitches, use your life events to connect. If interested, they will do the follow through.
Take advantage of your local opportunities, they may lead to bigger things. Fingers crossed! Want to learn more about this article? Sorry, it's print only. Weird right?