Free: Contests & Raffles.
I have a 5 mega pix that is 4 years old and still working, now that I said that though it will probably quit, but 4 years is a pretty good life, for an inexpensive camera.
Yes with the exception of hunting season for the first three years, I left it up through the season this year, always in a bear box with a visor I built to try to keep it as dry as possible.