Originally Posted by Gary Evans
There are two possible situations in which RTL would be used.
One would be that you are testing it and in that case you should be ready to re-establish manual control if needed.
The second would be that you have lost the RC link which would most likey be due to distance and in this situation I would rather take my chances that it still has a GPS lock and go into RTL than do nothing while it flies off into the sunset.
Not to negate your point, but you forgot another reason for RTH, loss of video.