Originally Posted by paulchiu
I don't know how you have treated your 800s, but here's what I do know.
(1) I've had mine since October 2009, and have used them for at least 5,000 hours (probably closer to 6,000). They look nothing like what you show in the photos you posted. I have a few small areas of flaked paint on high-wear surfaces. The pads could arguably stand to be replaced, but their surfaces are unblemished.. The headband is pristine.
(2) I know a couple of dozen 800 owners, and none of them have reported wear issues remotely comparable to what you have described.
Don't know what to tell you, other than that I am aware of no evidence that suggests that your experience is anything but anomalous.