I get ghosts all the time! It's weird! They act like they are buying from a vending machine or something! Press the button, put your money in, get your item. I think it's the new age of buying and selling; no communication between buyer and seller at all. There are ghost sellers too; many more than buyers even!!!
That's supposed to be the point of Ebay! There's actually no need to communicate if you don't want to. Ebay does it all for you.