As requested my Mike, back to the glue in subject....if no one has seen any good movies.
Does anyone think that glue ins have such a great advantage that it is worth putting something in the rock that cannot be replaced down the road without serious destruction to the rock? That said, most people seem to use wedge anchors as bolts since they are drastically cheaper than five piece bolts yet they aren't really replaceable either. Seems like a wash if you think about it that way. Five pieces suck for ground up too since they fall apart.
Aside from some added convenience, I still think seeing more metal in the outdoors looks awful and the glue ins are pretty big. You can at least camo paint a hanger which looks so much better.