I wouldn't mind artifacts either. The only trouble with them is that they require the DM to 'play along' if they are ported from one adventure to the other.
LFR only allows their use within a single adventure or within a campaign being coordinated by a single DM, where the artifact is required to 'move on' before the adventure/campaign ends.
I do, however, think that when they are tactfully used, they make a story extremely interesting.
As for comical, gabby weapons, have at it. I mean, with Ken, where can you go wrong?