Good post!
RE: Skiing, GoPros have a way of flattening pitches and slowing you down on camera. I've had some awesome runs down steep pitches that look lame on the computer.
Certainly going to fiddle around with the settings way more in pre Xmas riding so things are really dialed in for big powder days. Placement is also important, perfect balance of skis, terrain and scenery.
For a laugh, there's a serial offender on OpenSnow who posts a TON of GoPro that I would bet a pretty penny are sped up quite a bit.