The more complex something is, the more difficult it is to isolate bugs. (Windows 10 had over 5 million testers over 8 months (Not including the Microsoft development team) to iron out any bugs before launch, yet there were still some users that had initial problems with it, which required updates to fix)

One of the reasons medical and military equipment is so expensive is because of the amount of time taken to test, however I doubt many keyboard owners would want to spend 10 times the amount they already pay for a keyboard just to guarantee everything is totally spot on at launch.

Bill