There was a time when I thought this item was stupid:
Do not fly with a video system that is capable of outperforming your R/C system in terms of range
Then I switched to a cloverleaf/helical set up on the video... oops. The next 4 flights involved out of bounds crashes (ok, one landing was good) due to flying behind objects. I was so used to getting a warning in my video that I had disturbed the Fresnel zone that I completely neglected the laws of physics 4 times in a row.
@boopidoo - You can get that camera from secuitycamera2000 for $50 shipped, still.