We enjoy dispersed camping mostly.  We may be miles away from anyone, but anyone might happen by our camp too.  So I usually have a weapon in the trailer.  I have never needed it, but I certainly have slept better at times knowing it was at hand.
Having said that, if I don't think we are going off the beaten path, I do not take one along.  It is just a bother and a responsibility that I don't mind leaving behind in certain situations.
I choose not to live in fear, and sometimes that means being armed, and sometimes that means not being armed.