Funny, I just sold my M10 on eBay for $69. It's a good cam but not IMO for cycling. The battery doesn't last long enough and it's a bit of a pain in the rump to turn on (press one button, wait a few seconds for it to boot up and for the display to come on, then press another to start it recording, and it's hard to see in daylight if it's running or not.

Since pretty much any camera will do acceptable 1080p footage, IMO the qualifications for a good cycling cam are as follows:

- Replaceable battery
- Longest possible run time on battery (I switched to Garmin VIRB at 3.5 hours)
- SINGLE SWITCH to turn on and start recording, and to stop and shut off.

My helmet cam is an SVC200 which is now sold as a Coleman something. It may get replaced with a Garmin VIRB because of the battery life issue (the SVC200 is about 100 minutes on a charge) but other than that it meets qualifications.

The only downside to the VIRB is that it's a little weird shaped for mounting on a helmet.

The Contour cameras are pretty good but with no display it's hard to work with them, you have to plug them in occasionally to format cards/etc. Also battery life is shorter and I don't think they have removeable batteries.

The Drift Ghost is pretty good but fails on the controls side and the battery life isn't quite what the VIRB is (and is 50% more money).