A software developer made a Chrome and Firefox extension called Knockoff that automatically hides, grays out, or filters products from sketchy brands on Amazon, which highlights just how many shady brands are on the platform and how commonly they show up on searches for basic items.
Couple things.
First, those are likely “third shift” products. The Chinese company that’s making the original product does more than ordered, and off the books. Slap a different sticker on it, and you can sell it without worry of it being caught as a counterfeit.
Secondly, there is something to be said of going through the original manufacturer. They have warranties, and actually care about their name so will go to some extent to support you if something goes wrong.
Now is that worth doubling the price? Not likely. But it’s something to keep in mind.