Everyone has a story. Every story is compelling. The mousy guy that you hardly notice has a heartrending tale that explains his demeanor. No story should be take for granted. As a writer, I feel obligated to share my story. Maybe there's someone else who is a maverick, or audacious, or unrequitedly in love with a mighty Chupacabra hunter and needs to know that things will be okay. That's my responsibility.
But despite that, I don't think I could ever go the autobiographical (or even semi-autobiographical) route - for profit. Because, when I speak, I will speak the truth, and people don't always want to hear the truth about themselves. So, if I give it away, here, then maybe it won't be so bad. So, when I feel stuck, or lacking a topic, I will talk what I know: me.