hi Everyone, I am sure this topic has been beaten to death. I got a Phantom 3 Pro (Lightbridge). And I got a mad deal, 16gb iPad Mini 4 Wi-Fi for $220 after taxes,new and didn't know that it doesn't have GPS. But have been Googling all night about wi-fi mini vs cellular mini. Also I can prob get the 16gb Cellular version for $379+taxes so that is an additonal $180 I'll be paying to go up the chain. Now if I decide to stick with the Wi-Fi version, what am I actually missing out on: 1) Follow me mode? 2) To be able to set a new RTH point if I move from one location to another? 3) If I don't precache maps, I won't be able to see maps in the app if I travel to different and outside of range of any wi-fi connection? 4) Map orientation while the drone is flying? Does not having a GPS impact any of the following: 1) Distance travelled? 2) Line of sight works just as well without GPS? 3) Lightbridge dependent on GPS at all? Also, is a 16gb iPad ok or should i invest in a larger capacity? Is the iPad storing any videos/photos or is all of that all on the micro-SD card? Thanks everyone!