I've got S&W revolvers going back every decade to the 1880's. On top of that I've got a handful of 38 Special target models (K38's, Model 14's, Officer Model Match's) from the 1920's to the 1950's. Other than that my accumulation is fairly diverse - a couple Colt Woodsman, a variety of 9mm's, a number of 1911's including an M1911, M1911a1, Colt Sistema, Delta Elite, and so on. I prefer having some diversity. Once I get 2 or 3 of a model I like it becomes less interesting to buy more of the same.