Well my two cents worth Ill throw in. I have a GoPro hero 3 white and I just purchased the Drift Ghost, not the S model. I have compared the two in different applications and found the Drift Ghost the better of the two, unless you are diving, then you must buy the extra case. I was impressed with the ghost because of the rotating lens, the LED screen and the phone app. I have used the GoPro extensively during deployments overseas with the Army, both helmet mounted and weapon mounted and it did a great job. Unfortunately the Drift was not available to us at the time.
So I guess it is up to the individual user and what they want. From memory Brock wrote a good article, with pics, concerning the camera.
Regards
Gibbo