Crazy selling price for signed program
 

Hi, can somebody tell me why this program sold for over $1,100? From my experience bidding on signed programs from the 1940s or 1950s, these rarely go for more than about $100 each — I've picked up some really nice ones for considerably less. I realize that Karl Drews is tough, and Luke Easter is popular, but what am I missing here?

I've long believed that signed team programs with great graphics and vintage signatures that display well are vastly undervalued — just not this much.