Originally Posted by Allister

I bought a camera recenty, and use it on my commute. Recording evidence is certainly one of the reasons I bought it, but I'm not silly enough to pester the police with every minor infraction I happen to record. I'll reserve that option for actual collisions or other comparably serious incidents.

Otherwise, I'm with noisebeam - it's a handy way to explain things. If a picture is worth a thousand words, a video is worth a million. (I kinda wish Helmet Head would get one, actually).

They're also a good way to show off a bit, and who doesn't like to do that occasionally.