That's the obvious reason, Yaz could use the money way more than Miggy so it takes more to intice a guy like Miggy to do a signing. Still, it's hard to find the price to be "worth it" when you compare the players. In terms of value to the collector, the autograph won't be worth more because Player A made more salary than Player B. It just costs more at shows. Does anyone really think a Ted Lilly 8x10 is "worth" the same or more than one signed by Al Kaline?