I have flown a P3 pro several times and have been very impressed with the drone. For Christmas I received a P3 pro and was wondering if its worth paying $200.00difference to get a P4. I have been told that the camera differences are minimal between the P4 and the P3pro but that the flying range distance is better on the P3 pro.Hve any of you had a P3 pro prior to having the P4? Is it worth the change or would I be better off spending the money and buying some extra batteries for theP3 pro. ( at present I have one extra P3 battery)