“They’ll probably just sell the autographs on ebay.”
“They all write the same thing. It’s probably a form letter.”
“Why do they want MY autograph? They have no idea who I am.”
Your envelope has been opened. There are at least three major reasons why a signer may not pick up a pen and respond. He’s rehearsed all the reasons to say no.
How are you different? Why should that signer sign for YOU?
Before you gamble another stamp or risk a paper cut, make sure you can answer those questions.