Apple doesn't sell the P3 Pro only the P3 Advanced, P3 Standard and the P4....Looking to buy my 1st bird and was wondering if there is a huge difference between the P3 Standard and the P3 Advanced besides a couple a hundred bucks? For my 1st bird I can't really see myself buying the 4. A friend of mine in the neighborhood had a buddy over yesterday and he had a P3 Pro. He flew it over a mile away to another friends house completely out of site and I was really amazed as he hit the RTH button and 5 mins later it came flying right back to us. Don't know why Apple doesn't sell the Pro model. Would I be happy with the P3 Advanced or should I spend a little more and get the Pro? The only difference I can tell is the option of 4K video over 720. Don't believe it would make that much difference to me and I could save some money on my 1st purchase. My son bought a 3DR Solo a month ago. I can see a huge difference with the Lightbridge technology over the WiFi. Thoughts???