The price ain’t right, so something’s up, and since the seller isn’t talking, you should probably not be buying.
The scam could be anything (fake card, breaks under stress, etc), but selling at that price and saying its perfectly fine is a very suspicious mismatch. It really doesn’t matter what the scam in particular is, it’s suspicious regardless.
I linked the thread on ebay's site. Apparently, they report the listing as false, have it deleted and then you can't get your money back because the listing doesn't exist.