The other advantage to a leaf shutter is that it is usually a seperate unit from the camera and in the case of LF lenses seperate from the lens itself. This allows it to be used with a variety of lenses and camera bodies. The focal plane shutter is part of the camera body. When the shutter craps out, the body is junk unless the shutter can be repaired.
Does anyone know what is the typical number of cycles for a leaf shutter such as a copal? If I remember correctly Nikon F-5s had an advertised cycle life of 100,000. That may be high. Anyone know off hand how many times does a typical focal plane shutter cycle before failure? (cycle meaning an opening and closing of the shutter)