Yes, also in my experience "Amazon's Choice" does
not protect you from counterfeit, grey market or any other crap items.
I wrote to jeff (at) amazon (dot) com last week about this, because I got super upset. And some middle manager replied. I shipped US -> UK some underwear from a company that uses no latex (I'm allergic), sends items inside a ziplocked sealed bag and prohibits underwear returns (for hygiene reasons).
After waiting for the parcel for 2 days at home, as I was in a hurry to get more latex free underwear, I got an Amazon envelope and the underwear came inside without any packaging and clearly used (!). I was furious.
Not an isolated event. A few weeks ago, I ordered a shower with a chlorine filter from Amazon UK. I know this korean brand very well. Again, I got the item without any original packaging, and water inside (!).
So I don't trust Amazon anymore for items that are more than $10. People abuse the return policy, and Amazon does not care. Or it's even their business model: Ship it again, selling it as new. Online shopping is getting very tricky.
I'd gladly pay more at places that guarantee brand new items. Things are getting really scammy. Around 1/5 of the items I buy online have been opened and used, or have some defects. And I'm talking about expensive stuff and supposedly reputable sellers.