How is it a scam? It is what it is. No one is being scammed in any way. It's a nice way to get an auto you own onto a decent looking card. If it's not for you, it's not for you... but it's certainly no scam.

The only scam is that one of the Juan cards that I saw on here has a questionable autograph. It looks mostly right but enough off to give me pause. PSA/DNA does not ensure that the autograph is real.