Im sure the number of foul balls hit into stands is BEYOND how many bats that are cracked get flung into stands and at players. Think about how many foul balls are hit in 1 MLB game, then think about the players using aluminum. Foul balls are already dangerous when line drived with a wood bat, now imagine aluminum. Fans would get there heads knocked off. Yes, we all love watching homeruns, but if everyone used aluminum, average players would be hitting 50, 60 + HR's a season, and the big boys would be hitting well over 100. No reason to ever use aluminum. Wood bats are the bread and butter of the major leagues. There not in college anymore. Welcome to the show!