I have a small apple laptop. The cable lead is around £60. It has now frayed just below where it is attached to the computer, exposing all the wiring. I only have it a few months. When I went to the apple store, they said it was accidental damage and not a problem with the lead. I have not used the lead for any other purpose other than it's intended purpose. I have not handled it roughly. One of the guys said there were special apple instructions about how to handle putting it into and detaching it from the computer.
AIBU to think that if it frays with normal use it is a design flaw. If it needs micro surgery finesse should this not be a huge warning.
I'm going to wrap the whole bloody thing up in insulating tape now.