The other day I reflected on why building and flying a quadcopter is an interesting hobby for me. It is pretty straightforward, to my mind. Two of my other hobbies that I started when I was young were personal computers and model building. Drones combine these two together since you build the drone and program and interface it with a computer. There is also a bit of photography thrown in, which is another hobby of mine. I have other hobbies that are not conducive to drones like wine-drinking so we will not add those to the mix.