I still don't see how commercialization is missed. Sigma Labs financial filing of 11/14/13 states that two PrintRite3D systems are at a leading aerospace company for use of testing and evaluation purposes in respect to 3D metal printing.
How is this not progress? Oh, right, anyone can manufacture for safety-critical application. So you're saying DDD, XONE, VJET, EOS, SSYS, AMAVF, and Concept Laser is manufacturing for safety-critical applications. Maybe SGLB is not up to par. You should definitely sell and move to one of the mentioned companies.