My steel touring bike, hand-built by Hugh Black of True North Cycles has a carbon fork. It was one of many options he offered; I really did not give the matter much thought. I think I chose a carbon fork because it was less expensive than having a steel fork built.

I have taken the bike on two major tours this summer and last, with my luggage hanging off the rear rack. So far, zero problems with the fork. The bike rides beautifully, both with and without loaded panniers.