So as the poll says this question applies to clean ascents also known as sending, redpoints, pinkpoints, On-sight, flash, etc.
If you're the type of climber that thinks free climbing is just to get to the top by all means necessary, then this question doesn't apply to you.
To make things more interesting I'm posting this video of Adam Ondra on a 9b (5.15b aka impossible climb for mere mortals)
http://www.vimeo.com/25514787
Check out the video at 13:15