I said I'm not a pro....but I am in my field. I'm a pro freelance videographer. Through the years I've shot not only video but 35 and 16 motion picture film and 4x5 and 8x10 view camera projects but by far the lions share of my work has been with video.
I know the 7D is great for airshows. I've carried both to shoot with. I'd love to buy a 5DIII but since I don't make a living shooting stills it's hard to justify buying one. I bought both current cameras used but with very low shutter counts. It will be a while before the 5DIII comes down to where I bought these two cameras for. I guess I'll wait before selling to see if a really nice 300 2.8 shows up for a good price that I can afford.