I'm guessing (and really, just guessing) that they did a lot of surveys and found that a majority of their customers were using the flight plans, and moving ove

I'm guessing (and really, just guessing) that they did a lot of surveys and found that a majority of their customers were using the flight plans, and moving over distances rather than spending a lot of time hovering. If that's true, a winged model makes all kinds of sense.