You have quality control , the human element and shipping
Until you start purchasing more than 1 drone , you wont see the differences , for instance you might have a start up time that is 7 seconds from the time the camera reaches a stable horizon to that of 10 seconds on the drone startup . We learned this from the
phantom 4 Series drones when we purchased 10 of them for a client, I made a video on that.
That is when I started buying Two of Everything :
Fun Fact: I purchased two Peloton bikes : Both me and my girl biked the same beginner program , I was spent, sick, dizzy, and could not understand how she was doing it, but I did not want to say anything about it. A week went by and I dreaded getting on that bike, well it turns out that her bike resistance of 50 was the equivalent of my 20. No wonder I was killing myself and i would have never known. They had to replace the bike.
so I would not go so far as to say you may get a lemon but having that second box to open can change the overall experience and if you dont need it , send it back unopened.
Phantomrain.org
Gear to fly your AIR 2/S in the rain and land in the water.