ORIGINAL: Glacier Girl
Something about power, it doesn't always mean speed. More power can also mean, ability to fly in higher winds, and the use of less throttle for same performance.
My brushless version can putter around for up to 30 mins. with lipo power. Can handle winds that the stock version can't. And seeing a Slo-V go verticle is just too cool.
You can also use the same motor and different props for more speed or power. a 9x6 can give you speed and an 11x4.5 can give you power but a lower speed. Like gears in a car. A larger prop and/or better motor can take off the ground easier or get you out of a stall easier and can take up a payload like a bomb drop or camera.
RCDuggiedug