Always wanted to own one of these, though I'd think the two major inclines on my way home from work would make it not a practical commuter in my case. I did not know the Dutch chain case was actually non-metallic bodied; what's the deal with that? Are the metallic / plastic ones an English thing?
Has anyone ever made these out of lighter frame materials, such as titanium or aluminum? Or even higher grade steel that can be butted? Seems like you could still have considerable hauling strength on those for less weight, though I suppose they'd cease to be "bomb proof".