When you're out and about flying one of the best drones, the last thing you want is, say, for your quadcopter's spare batteries to run out of charge or you not having an appropriate, even ground to land your drone.
Plus, I don't know about you, but I like taking a long walk (away from civilization and, well, charging points) and coming upon a beautiful scene where I can fly my drone — which is why it's best to be prepared.
