Possible reasons:
1) It was too far away, way out in Chelsea.
2) It was eight dollars.
3) That reading series is always ill-attended.
4) Aaron Kiely was reading down the street (that accounts for people ten years younger than me).
5) Francie Shaw had an art opening also down the street (that accounts for people ten years older than me).
6) People are burnt out at the end of the season.
7) The weather was bad.
8) No one listens to poetry.
9) I haven’t been going to enough readings lately and so have not racked up enough cultural exchange value.
9) I suck and/or have no friends.