Same. I'm probably close to $100K in purchases over the last 15 years from Amazon.

There is one product I've bought that I'm reasonably confident is a counterfeit based solely on the build quality, and unfortunately it's a Leviton GFCI plug [1]. Not exactly something I want to risk to inferior quality control.

1 - https://www.amazon.com/gp/product/B0037NXKY0

Well do you actually verify the authenticity of your purchases? It depends on the product category somewhat, some categories are absolutely rampant with Amazon knockoffs in a way that you literally cannot avoid by scrutinizing listings or eyeballing it. The first and only PC thermal paste that I bought on Amazon was from an official listing but I was delivered a straight up knockoff. The thermal paste company is a common knockoff target so they provide serial numbers that you can use verify the authenticity of your purchase. The knockoff product had the audacity to include a fake serial number, presumably because they know most people wouldn't bother checking. The knockoff paste is a slightly different shade of gray, but I only know that because I had previously owned a (verified) authentic paste as a point of reference.

Did it work just as well?

I don't know, I'm not going to risk expensive PC hardware and waste time trying to find out.

I take the approach of how big a deal it is if I get a counterfeit. If not a big deal and/or it’s likely all coming from the same Chinese factory anyways I just go through Amazon. If I want to maximize the chance that I get the real deal I try to get as close to the source as possible

>I take the approach of how big a deal it is if I get a counterfeit.

You could lose your global entry / TSA precheck privileges.

[0] https://www.racked.com/2018/1/8/16849298/amazon-counterfeits...

> Maybe I don't notice the occasional knock off.

That’s likely. Many of the knock-offs are very convincing, especially if you don’t compare them side by side with the original.