I would not go so far as to say there is not a purpose, but I would disagree that many who open carry do so for attention. When I ride I typically carry my LCP in my jacket with a pocket holster, but my XD holster can peek out from under my jacket sometimes. I will not open carry beyond my property, other than being at a good friends house. There is no tactical advantage IMHO, and unless you are carrying openly with a retention holster, that is not tactically very smart. We have the right to do so for now, but I fear that could change if we get a Democrat Gov in office after Kasich.