There are people that actually believe the gunman was on the grassy knoll, the moon landing was filmed in a studio sound stage in California and Simple Green dissolves a bicycle chain.
There was one lunatic that actually believed you could ride a Campagnolo UltraTorque Hirth joint crankset with a 1 MM 'air gap' separating the crank spindle halves.
10 pages of
retarded alf:
http://www.cyclingforums.com/threads/the-infamous-bb86-ultra-torque-click.446798/
Campy cable sets...all 4 inner and outer w/hardware...cost $45-$60. So the $60-$70 price isn't unreasonable IMO for the weight savings and claimed performance gains.
The manufacturer's recommended service life of 3 years offers no increase over steel though. The increased installation complexity and care will probably reap Darwin a few new candidates.
I will be interested to see if the polymer shift cables hold up any better at the ratchet drum to the constant flexing and bending and friction than steel cables.