Whiy is an autograph on a card worth 10X

[sreader3]

Originally Posted by egri

And, no two signed cards are exactly the same; signature placement, type of pen, ink color, even style of signature are always different. They're also created one at a time, not like the cards themselves that are churned out in a factory.

This is a great point. Every signed card is unique and therefore fascinating to me.

I would only add that, unfortunately, the factors you cite also are also relevant to authenticity given the huge amount of fraud in our hobby.