You’re right, just like there are still mainframes running out there, there are still new desktops being bought, roughly 66 MILLION systems last year! It’s just that laptops sold roughly 275 million systems. As Apple’s always going to be a sliver of the entire market, so, focusing on a sliver of 275 million systems yields selling a lot more systems than focusing on a sliver of 66 million systems. It’s one of those things that, once I realized it, a LOT of actions Apple’s taking falls into place. The “missing” 27 inch iMac, for example.