Rudder
Fun, fun, fun, and of course the wow factor that you get from the other r/c pilots, I see it like a men club (we have women pilot and they can kick my ..... any time flying), you do something and every body tried to do something better; today we have our yearly BBQ at the field, I did my only cool maneuver I know and then every body else was trying to do the same thing, man we crashes today because that, and I was not one of them, I got back home with the plane in 1 piece and undamaged at all.
This is a fun addiction, my relief valve, have fun, and always keep alive the little kid that lives inside us( I think I'm about to give birth that kid or I have gained some weight lately).
And one more time have fun, fun, fun, fun.