[QUESTION] Signature Guitar That Is Actually Worth The Price And The Opposite

First of all, I know I don't speak for all signature guitars, but from what I know, signature guitars are expensive because of the artists name and less for the worth of the guitar itself, but I might be wrong.

So, have you guys tried any signature guitar that is actually worth the price? If yes, give a shout out to the brand!.
Also, what is the most overpriced signature guitar that you would wish fellow guitarists to avoid buying?