I have a Hero 4 Black that I purchased a few years ago for mountain biking and diving, and I completely agree with this. It’s a huge amount of money to spend to update to a new product that isn’t substantially better. I think that they would be better off focussing on the smaller session cameras and providing a range of shell accessories to change the form factor for different activities. I.e on my downhill bike I’d prefer a more elongated camera attached to the side of my helmet than a bulky square box hanging out of my visor ( as it has been ripped off on branches and various crashes).