I have a Contour and a GoProHero2, both ~$300. Pros and cons to each.
RaceKeeper and its ilk are many steps up and ~$2K. Of course, you get TONS more data, info, images, etc.
The $300 cameras are really cool toys. I put them on my mountain bike and other stuff. The $2K stuff is a real data/video system.
Dave, I'm very curious - can you share what your issues were with the Contour? Thanks...