I guess I'm a little more optimistic about how many are still left. I don't think the "normal attrition rate" applies here, since the Crossfire isn't exactly the normal "daily driver". (Of course many are). But a much larger percentage of Crossfire's enjoy "Garage Queen" status, than the average family truckster's that those statistics are based on.
That being said, I really have no idea how many are actually out there.
Even though the Crossfire debuted nearly 13 years ago, I have yet to see one on the road with any "visible" rust, and I live in what is commonly recognized as the "Rust" belt of North America.