Yes, I've seen the gold on the back of the copper caps that eesakiwi is talking about. I have no idea how much is on there but I do understand the buyers have to average in for their profit.
I did do a breakdown a few weeks ago on these and determined that it is better for me to leave them on. I can't find my notes right now, but will post details if I find them. I remember breaking 20 each of a few types down. The ones that have the plate the same size as the fiber are definitely worth more whole. The ones with the smaller plate on the larger fiber would sell for only a little higher if pulled apart and valued for the fiber chip and the copper plate separately. It is such a small difference that it's not worth the time to do it in my opinion.
On the other hand, the K6 AMD ceramic with the aluminum plate is a pretty good item to break down. The plates come off easily with a chisel and the items sold separately bring more than together.
Again, I will post the breakdown if I can find my notes.
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