[@ERode]: Have you seen fantasy worlds these days? Legendary weapons are a dime a dozen.

But in all seriousness, though, legendary weapons usually have plot relevance, and worst comes to worst, they can be used to lead plots places. That sorta power kinda limits my design space as a GM, even if they're unusable (hell, it's mind control lite on sentient weapons). So yeah.

Not saying I'll use them liberally, but hey, never hurts to have options, right?