A picture of a physical card is not the same as holding the physical card in your hand. Plus having one signed makes it infinitely more valuable to collectors.
Having a digital video clip exactly the same, down to the pixel and byte of data, as the digital video clip I can download from youtube is hardly exclusive. And they can't sign a video clip. That is why this makes me think of a scam.
I am not saying people don't see value there, obviously they do, but I think there just isn't anything tangible or really exclusive except for the serial number, so it seems to be just a lot of people trying to capitalize on a new thing and make a buck. I can't see one of these guys going into Pawn Stars and offering a collection of moments on a thumb drive and getting anything for it years down the road.
But I am probably just out of touch with the collector market for such stuff. It is obviously working for some to make money, I don't have to "get it" for it to mean something to someone else.
But I really just don't get it.