Originally Posted by
Bandera
It's not 1969 anymore, fortunately.
Hardware, especially lightweight equipment designed for racing, fails in service at some point and needs to be replaced.
Remember the Campag drive-side crank-arms cracking back when? I do, and they were "metal".
Buying at the leading edge of tech gets you the privilege of having "cool stuff" and being a Beta tester.
Buying "second handed" once leading edge tech gets you someone else's problem and obsolescence.
-Bandera
Even the Campy Record non drive arm had failures.
This was sliced for analysis in an electron microscope and failure pointed to the concave machining on opposite side during manufacturing to cause stress fracture.