I guess you miss the whole point of an iPad. It was never meant as a replacement for a desktop computer. I too have a 27" 4K with an i7 processor, and also an iPad Air. Two different devices, each for much different use. I travel a lot, and drawing the iMac through an airport doesn't seem to practical, or going to meetings and taking notes on it. Building complex websites doesn't seem to practical on an iPad. Different devices for different purposes. I don't know why so many here complain that an iPad doesn't run OS X. I wouldn't want it to. A mobil device should run a mobile operating system, with quick, instant opening apps for specific tasks.