""The poll hasn't really tested that hypothesis, imho. I would think that most of the movement from one type of handlebar to another happens at the point of purchase, by buying a bike with the new setup, rather than by changing an existing bike.""
+1 While we say "most of the people on this forum", there is no mention of including bikes other than rodies or bents. "most of the people on this forum" may in fact primarily use a road bike, but we haven't established that. Also I would think a bar change of drop to flat or flat to drop would probably only happen with a road bike. ergo hybrid, comfort, MTB and bents would have no input. Would think you would get more accurate results regards the hypothesis if you asked what type of bike handle bars do you prefer? If you have both, which do you ride the most? If you could change what you have, would you? Not whining, just bored and too humid to ride. Prefer my dew point below 62 degrees.
__________________
BierHaus Bertolette Road Bike, built 2007
BierHaus SRT Trail Bike, built 2010
Fuji Mt. Pro - 2007