Those things COULD matter in a stressful application.
But this is a keyboard.. it's like asking, well my car has wheels vs some one else's car with BIGGER wheels..
But you're just driving back and forth between work and your house.. Even if there is a mechanical difference, tracking, friction, steering precision..
At the end of the day, you go home , eat, have sex with your wife, and go to bed..
keyboards is just too low tech, for it to matter.