Yes they are money makers. However, they are expensive. If a gang of kids were to go around destroying them all the time, they would cost much more to replace than the revenue that they rake in.

I'm not saying that I or anyone else here would or should do that, I'm just stating a fact about their cost effectiveness.

On equipment: You get what you inspect, not what you expect.
On training: Our drills are bloodless battles so that our battles are bloody drills.
On tactics: Cheating just means you're serious about winning.