John's made great kite photos with every camera back to that classic N900. The picture of Dan Whitney with the Vapor in the upper right corner of this screen is as good as it gets and it was made 8 years ago.
The image quality out of his new SLR is certainly ahead of the last camera, but it's to the point that for on-screen display, there not much you can do with more pixels or dynamic range. 20 grand worth of gear would not have made most of these shots any better.
I used to think the same thing until I saw what the good gear can do.
John, I understand the cost over the top. If I had the money I'd buy it all for you.