but the question is not will these swords break on a bad cut, but when.
The incidents i've heard of the Chen swords breaking ALL involved the person in question doing something particularly stupid. (Cutting a triple rolled target with a 3/4 inch wood core for instance)
If you're cutting the proper material, and keeping the sword in good condition, they can last a very long time.
The problem isn't the swords. It's the stupid and ignorant people who swing them around without having the first clue about what they're doing.
I'm sorry if this sounds aggressive i'm not targetting anyone here but this particular topic always gets me a bit riled up.