I'm not sure I understand how serial numbers can really stop fakes. If the company making the fakes knows that the serial number on a legitimate interconnect is 27543 and they put that number on their fake, when a customer calls up and says "I have 27543 is it legit?", the answer will be yes right?
I suppose if the numbers are all associated with a registered owner and the subsequent owners all re-register, you could then start to catch fakes or alternatively if you started to see a pattern of the same serial numbers starting to appear on the same models of IC's or Speaker Cables, you'd know you had a problem.
Being active in the watch collecting community, I've seen this occur with watches...over time repeating serial numbers revealed batches of fakes, but it took awhile before it was discovered and I've seen watch manufacturers label a watch as legitimate that was later found out to be fake after it was openened up and more carefully inspected.
Bottom line, it takes more than the printing of a serial number on a product to stop a fake.
I suppose if the numbers are all associated with a registered owner and the subsequent owners all re-register, you could then start to catch fakes or alternatively if you started to see a pattern of the same serial numbers starting to appear on the same models of IC's or Speaker Cables, you'd know you had a problem.
Being active in the watch collecting community, I've seen this occur with watches...over time repeating serial numbers revealed batches of fakes, but it took awhile before it was discovered and I've seen watch manufacturers label a watch as legitimate that was later found out to be fake after it was openened up and more carefully inspected.
Bottom line, it takes more than the printing of a serial number on a product to stop a fake.