What is the most important incentive to use industrial robots in the manufacturing industry?

Ake Lindqvist, IFR President, recently retired from ABB Robotics USA/Sweden
John Dulchinos, CEO Adept, USA
Masahiro Ogawa, Chairman Yaskawa America, USA/Japan
Kevin Ostby, Vice President, FANUC Robotics America, USA/Japan
Stu Shepherd, President, KUKA America, USA/Germany
Dr. Michael Wenzel, CEO Reis Robotics, Germany