The Lasorda picture is signed to someone personally from him. Unless someone wants his autograph bad. I don't think it would bring much $. His signed photos or baseball cards go for about $10.00 - $15.00 on ebay.
I was not all that familiar with 80s baseball Star sets, outside of the Garvey, but don't recall seeing a header card like that before for Star cards. There is one on ebay now for $10 delivered, so apparently not scarce in any way.