The MAC has a loyal niche market. In business, the MAC is used almost exclusively for publishing and graphic design. Those industries remain in lock-step with Apple. The IPhone also holds a place in the buying public's mind. If Apple would reduce laptop prices to the level of IBM PC-style laptops, they could gain market-share but this isn't going to happen. Apple loves their niche and will continue serving it in the future. So, it seems the door is wide open to Google Chromebook.