And that’s pretty much the only reason to keep Macs around these days. And the MBA doesn’t really factor into this equation.
When you look at Apple’s grand theory of design, it’s not exactly clear where the MacBook Air even fits in at this point.
Which is why I say - drop the MacBook, MacBook Air and Mac mini. Keep the MacBook Pro (13” and 15”) and iMac (4K, 5k and Pro). Maybe release a Mac Pro for the really edge cases even the iMac Pro cannot handle. Continue to work on making the iPad the general-purpose computer for the masses.
It fits in to filling an entry level price point which neither the MacBook (which is scarcely suitable for any kind of content creation anyway) or any of the MacBook Pros currently fill.
If Apple want iOS development to remain strong and Swift to gain any kind of traction they can't afford for the minimum buy in for a Mac to be $1200. It behoves them to keep the Air and Mac mini serviceable and/or reduce the price of the MacBook to a reasonable entry level price point.
Besides this is Tim Cooks Apple nobody should really expect ruthless culling of older devices, there are still three year old iPhones on sale and they even revived the iPhone 5 design and released a marginally updated version of the iPad Air to occupy the lower end price point. All the rumours suggest its an approach that is set to continue.
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