I can't understand how a company as capitalized as Apple is can't spend the time to update their desktops and laptops on a yearly basis. I realize that iPhones are the priority, but if I recall, MacOS devices are their number 2 or 3 money makers. Even more than iPads. So why push iPads as laptop replacements when the market has shown that tablet OS devices are supplements to computers. Even Microsoft has started pushing the Surface Pro as a laptop, not as a tablet, something Apple can't do because iOS isn't a desktop OS.