Interesting discussion. Since I only play Acoustic any more, I have a Korg that clips into my soundhole and is very discrete. Even other players don't notice it. The problem I have with it is that when I use it on my Hummingbird, the pick guard is thicker than others, and it tends to vibrate loose, since I play pretty loud. But I agree that the ones that fit on the headstock look strange, and distract from what listeners/gawkers should be focusing on. 🙂