I got a total of three G-Horns. First one I have no clue. Can't remember. Second from Nightfall forgot which one. And my third came from Crota when it didn't pop up on my screen. I have no complaints. I wasn't here when Xur sold G-Horn the first week or whatever. But I do agree on the matter of how many would have G-Horn if Xur sold it. It would be overused like Suros then get a little or big nerf.