OK, now we're getting somewhere.....perhaps it is the design rather than the material. Because you're right - the Ti bars I'm talking about are straight with a stem spacer. Maybe some internal butting - I'm not sure. With the same design and the same weight, the Ti should be WAY stronger. This should easily justify the cost for all these guys I see breaking or bending expensive bars. BUT if the center bulge, tapering, etc. means that the Ti bar is NOT significantly stronger than aluminum - and I would guess that would make it weaker than carbon - then there you have it.

edit: well, this discussion has become academic for me - though I do think it's interesting. I just bought a straight carbon bar for $49 from Cambria Bike Outfitters. That price does make it hard for Ti to compete.