You should get a lot of answers but to begin with it all depends on what you want out of a camera, what you'll settle for, and how much you're willing to invest. Right or wrong, I choose to run one that I know won't fail me and will last for years. I'm speaking of a ReconyX. They run about $500+. Or you can go the route of sacrificing some (and sometimes all) of the reliability for more than one camera. This way you can cover twice or three times the territory as one expensive camera.