I second the disappearing act or at least microscopic in popularity of the Steyr M series. Don't hear much about Kahrs, Walther polymer framed guns, and the Vitor /Bren 10. In calibers, a year ago Id say anything chambered in 10MM but I think that's changing. Maybe in the next few years anything in .40 & .357 Sig will become a memory as 9MM moves ahead.