[SURVEY] Do you ask for a penetration test when deploying an application?

For a talk I'm preparing for Railsberry 2013, I need to know if people ask (either a freelance or an internal application security specialist) for a web application penetration test when deploying a new web application or a new important feature.

I created a survey on surveymonkey: http://it.surveymonkey.com/MySurvey_Responses.aspx?sm=3CoKrIbdErrULaKVpmoUz9MM49m1csdbPL23HmoRVhU%3d

What do you think about it?