I always thought that this was about the stupidest concept anyway. The only signing I went to in recent memory was when I saw the late Willie Davis at a signing near where I was working about 5 years ago. I stopped in bought a ball, an autograph ticket and stood in a 1 person line to have him sign it.
Then, some numb-skull kid with PSA sitting next to him asks me if I'd like an authentication with that? ($7.00 at the time) I asked "what the hell I needed that for when I just saw the man sign the thing right in front of my face."