The furthest distance that I would want to monitor is about 225 feet, with the majority of distance being anywhere between 50 and 125 feet. This would cover the whole street on our south side from intersection to the corner of our property, including the cult-de-sac. This is the prime area where just about all of the shenanigans occur. And with auto-tracking, I could eliminate one camera.
Just remember auto-tracking isn't perfect and it will lose tracking just when the shenanigans start.
I wouldn't delete a camera and use it maybe as a spotter.