The only POSSIBLE reason anyone could have for flying a quadcopter is because they are interested in mounting a camera and getting into drone photography. They are otherwise perhaps the most boring RC devices around.

BTW, I want to clarify that I have lots of respect for SCALE helicopters. It's just that you almost never see one. Most "helis" are the equivalent of 3-D fun-fly models. Also I would love to see SCALE HELICOPTERS doing a range of scale actions for example, picking up, carrying and depositing loads. landing in tough spots. That to me would be a lot more impressive than flying upside down and backwards.

http://www.youtube.com/watch?v=08K_aEajzNA http://www.youtube.com/watch?v=d-Gt1sKv2vo In fact, you'd think that for serious scale helicopter fans a great field would be full of obstacles.