re: Go pro owners, school me on what I need to know about em plz ?

I've used most if them. I sold my 9 a while back because the video needed a lot of tweaking to make it anywhere near as good as my 11 without any. Solid camera for a first GoPro. If you've never had one you won't really miss what you don't have. The 10 is almost as good picture wise but the 11 is way better in the stabilization department. Not quite like a gimbal but close if you learn to walk smoothly so it doesn't have to correct a lot.
Additional 9 and up all can use the same batteries and other accessories so that is a win.