You clearly aren't familiar with US gun culture, e.g. plastic Glock v. metal 1911, striker fired vs. Single Action, Gaston Glock vs. John Moses Browning! Light, fast 9 mm Europellet vs. heavy, slow .45 (11.5 mm) Auto Colt Pistol ... and those are just two of the most prominent right now. Let me assure you, this isn't unique to IT!