but I'm pretty sure they haven't revolutionized the metals that bats are composed of and the method of making them. I've also seen one replaced with a new one and a teammate break the "BRAND" new bat less than a week after getting the new one. Not old as in been used 18 years, I'm referring to the previous style aluminum bats I used. Actually, the older the bat, the more prone it is to just denting and cracking. The newer ones have more tendency to snap off like that because they are still pretty stiff.
If you've never seen one break before, you've obviously didn't play baseball very long.