[Irishsig]

If you go onto their forums you can find many instances of sellers that scam people.
Amazon relies on the buyers to report the scammers, but I can imagine how difficult it is to stomp it out.
You stop one and dozens popup in their place.
The buyers really do most of the policing and Amazon acts as judge & jury.
You just have to do your due diligence and comb over all the reviews and usually if a deal is too good to be true, it is.

I had the same issue a couple years ago when trying to find one of the last great Panasonic plasma TVs.
Several "different" sellers were offering the same TV for new & used at a fantastic price.
My BS radar went off and further research on their forums revealed the seller(s) true intentions.