SJCAM just came out with a new cam, the M10. It's basically the same camera as the SJ4000 but without the wifi (I've owned 3 action cams with wifi and have yet to actually use it beyond trying it once and saying "meh, that's kind of cool I guess"). and also has a smaller visible face, more of a cube than the tradition (and butt-ugly) GoPro look. I just ordered one last night.

It's a bit less expensive, you can get the camera with waterproof case and the whole array of (GoPro compatible) mounts plus an external charger and a spare battery for $99.

I should probably round up all the old unused action cams I have sitting around and ebay the things, just to clear up the clutter.