No issue with losing techs. The problem is finding young tech savvy techs to replace the dinosaurs who are aging out or won't keep up with technology. The days when someone who could work on a bicycle or car was qualified to repair copiers ended 20 years ago. A lot of the older techs are completely clueless on anything beyond wrenching on and throwing parts at machines.
As a sales rep, its amazing how much time I spend helping customers or technicians out with things that the tech couldn't figure out on his own. I'm not talking difficult stuff here. Basic use of a modern office copier. If its beyond changing a drum or fuser sleave its beyond comprehension for so many of the older copier mechanics.