32 years. Originally on the board. Started learning CAD with AutoCAD version 1.0. Started using AutoCAD version 2.0 soon after 1985 or thereabouts. I remember when MS Windows debuted with all those user interface elements that AutoCAD had for many years before. With Windows came AutoCAD LT which meant much cheaper CAD without that stuff you might need < 1% of the time. Became an expert with that and using DIESEL and menu modification and development. Still here. Hopefully can retire in another 15 to 20 years.