I'm a contractor working on the new NYC 911 system and the supporting IT infrastructure. The current system, at the desktop level, is all old IBM AIX boxes and every single one has one of these keyboards. The monitors, mice, etc have all been replaced due to wear and tear, but these keyboards have put up with the abuse of 24/7 constant typing for the last 15-20 years. Pretty amazing. I wouldn't mind grabbing one or two once they cut over to the new system.