Violated the constitution in a time when nobody would stand in opposition to the flagrant abuse and discarding of the actual rule of law, to get his way when the branch responsible for legislation and statutes didn’t do what he wanted?

So by “established manufacturer” you don’t mean Microsoft, ELOECOM, iOne, and the others that have been around for over a decade or more making mice/trackballs?

And by “Kensington...doesn’t have a trackball with a scrollwheel” you mean “just about every Kensington trackball has a scroll ring or scrollwheel equivalent…