Hero of quadroplegic game controllers to retire, replacement needed

Ed sez, "With a retired Bozeman engineer's 70th birthday approaching, disabled gamers say they fear there will be no one to replace Yankelevitz, who has sustained quadriplegic game controllers for 30 years almost entirely by himself. The retired aerospace engineer hand makes the controllers with custom parts in his Montana workshop, offering them at a price just enough to cover parts."