You are cherry picking here - Why not include Intel, Samsung, Sony, HP or Dell etc on your list? Why include Facebook but not Twitter?

We are talking about the third largest company in the world by market cap - growing an additional 3X isn't particularly feasible (that would have made them twice the size of the next largest company).

Particularly with the hardware category it's easier to drop the ball and fumble rather than stay on top - just see Nokia or Rim.