The whole women's choice thing is not really relevant in the big scheme of things, so we have to wonder why the stats are so huge.

Is there any truth to the assertion that many women are choosing a primary cesarean with the understanding that there is no medical reason?

The first national data from women themselves clarify that demand from women for a planned initial (or "primary") cesarean with no medical reason is infinitesimal. Despite some professional and mass media discourse about "maternal request" or "patient demand" cesarean when there is no medical indication, just one woman (0.08%) among 1314 survey participants who might have initiated a planned primary cesarean without medical reason did so. Just that one woman (0.4%) out of 252 survey participants who actually had a primary cesarean initiated a planned cesarean without medical reason. Two other women with a primary cesarean said that it was scheduled ahead of time without medical reason and initiated by a health professional.

All others (98% of women with primary cesareans) believed that there was a medical reason for their cesarean. The most common reasons cited were concerns about fetal distress, position of baby, size of baby, and prolonged labor.
Full article here: Mothers Report Cesarean Views and Experiences: New National Listening to Mothers Survey Results | Alerts :: Childbirth Connection