Seen quite a few bike wrecks.. and read about many more of them in the newspapers. It's always a sad thing.. but it's the risk you take when you're essentially riding on a rocket with nothing more than a one-bump's-worth helmet and quarter-inch thick leathers... don't have the luxury of a steel cage like a car has.
However, all that aside... I still wouldn't give it up... it's the embodiment of peace and freedom... riding that edge.
"The weakest soul, knowing its own weakness, and believing this truth that strength can only be developed by effort and practice, will, thus believing, at once begin to exert itself, and, adding effort to effort, patience to patience, and strength to strength, will never cease to develop, and will at last grow divinely strong."
- James Allen