another thing to consider in all this.... As far as I know, if you fight the charge through paypal or your CC they are only resposible for refundung the PRICE of the item, not the shipping. So if the seller rips you off you will only get the $1 back not the $200 in shipping fees.
I REFUSE to buy anything from people who list their items this way. When I find one I really want I usually email them to create a proper invoice for me fi I were to buy. If not, then I pass no matter how good the deal is. Just too risky as far as I'm concerned.