Yes, all of them. I think most members of our club would like to drive "real" nitro engines (especially I would), but due to the legal situation in Germany (and other european countries) we are not allowed to drive gas model engines on german lakes and ponds.

On the other hand fast electrics are much more uncomplicated and meanwhile you get distinctly more power and much higher rpm from a brushless motor then from a nitro engine. Weight is another reason: an outboard leg with 3.5 cc engine weights around 700-800 grams without fuel, an electric outboarder (including batteries!) does not exceed 400-500 grams. Last not least the torque is higher on a brushless motor, especially on low rpm. So the advantages are on the electric side... but the sound isn't.