I've dealt with a few, and I will grant that for some 'shiny' is probably enough.... but... I think that in most cases it will depend on whether the CEO is willing to dedicate time to learning Win8 or not. It does take time to learn, and until you learn, you look stupid.
CEOs don't like to look stupid.
Unless they have come to Win8 on their own, it is very unlikely that a CEOs underlings will persuade them to change.