I was at a Yankee game with a friend about 10 years ago and my buddy got a foul ball.
Within 15 seconds there were kids (mostly young teens) coming over to us asking for the ball. This went on for a while. Some really carried on and one in particular that stands out said something to the effect of, "C'mon... I've never gotten one before."
My friend's response was, "Neither have I and I've gone to over a 100 games and waited 33 years. Go to enough games and you'll eventually get one the honest way."