My girlfriend, her aunt and I had entered for free tickets, of course I won. I didn't have much to bring but I brought a signed Pete Gray baseball. I originally bought it for around $15. I know not it goes for about $100. I know it's authentic. That really isn't the issue. I know to authenticate the ball, it cost $25. Grading are more fees. Since I'm not looking to sell it, is it really worth the effort?