Granted, I do understand what your saying. That being said, Its was always my understanding that , lets say be&a made some of their own parts , vs roseville who dosent manufature anything (I would presume??). Therefore some housings or lenses lets say, are coming out of one place or many places. And being sold by many. Example, AMD appears to b the most popular panels vs goodmark / sherman/ brand X. Maybe I'm not presentng the question the right way... and kind of a multi point question to boot!