I have absolutely no earthly need for one but I want a GoPro so sooo bad...
Yeah, it was hard for me to justify spending the money, too. So, I didn't - we got it as a gift. That made the cost MUCH easier to stomach.
They're pretty awesome little cameras. Unbelievably small, but great picture quality. Last night I was taking video at 120 frames per second of our cats playing. Obviously it's not useful for anything at a distance.
My brother and his wife took over running the
White Rose Gameroom Show in York, Pennsylvania last year. My wife and I help run it. The deal is that people bring their pinball games/video games, set to free play, and they get free admission. Non-game-bringers pay $15 (I think) at the door to get in and get to play all they want. There are vendors there, too, selling parts, new games, jukeboxes, neon, etc. It's 3 days of exhaustion - the four of us and the other volunteers are pretty much wiped out at the end. But it's so much fun.
Last year, we bought this crazy little Panasonic camera (model HX-A100 if memory serves) that is sort of a GoPro knockoff, and we used it to do the time lapse photography. But that camera also does something even cooler - it will live stream to ustream.tv. This year, we had an old iPhone doing the live streaming and the Panasonic doing the time lapse (
viewable here), because the iPhone didn't have enough storage to do the time lapse. The smartphone live streaming didn't work very well - I had to reset the app multiple times during the days.
Next year, the GoPro will do the time lapse, the Panasonic will stream to ustream.tv, and I'll probably have an iPhone do the circular time lapse once or twice during the show.
I also run around with our Canon P&S every so often and grab pictures, which I then upload to Facebook. Oh, and I used my phone to do some panoramic shots by climbing my ladder. I didn't even bother bringing my D7000 this year - I wasn't going to have time to edit RAWs, concern about it getting stolen, too big and in the way, and I really didn't need it - the Canon does fine for the show.