I uploaded large batch of some early aerial videos about a year ago to give it a try. According to information iStock they sent out that time, the videos were supposed to be mirrored to Getty's site. No, they were not.
In fact, I can see now very similar aerial videos from the same location on Getty. They are $800 per piece. I sell a couple of them every month on iStock and I get between $6-$9.
Sad story
BTW... how does one get their videos to Getty's website? And is really someone buying them for such ridiculous prices?