There are a few things I have witnessed becoming obsolete in the past few years, the first being autographs. I haven’t been asked for an autograph since the invention of the iPhone with a front-facing camera. The only memento ‘kids these days’ want is a selfie. It’s part of the new currency, which seems to be ‘how many followers you have on Instagram.’
I’d say it’s probably 70/30 on iDevices vs. MacBook. Most of the MacBook Air time is work-related. And that figure is so heavily tilted in the iDevices favor because I use the iPhone far more than any other device.
That said, when it comes to “general computing”, I much prefer to use the iPad Air (with the Logitech keyboard) for almost everything. But I suspect a rumored 12” Retina MacBook Air could tilt the numbers back in the MacBook favor, if only temporarily.
We don’t take so long and make the way we make for fiscal reasons. Quite the reverse. The body is made from a single piece of machined aluminium. The whole thing is polished first to a mirror finish and then is very finely textured, except for the Apple logo. The chamfers are cut with diamond-tipped cutters. The cutters don’t usually last very long, so we had to figure out a way of mass-manufacturing long-lasting ones. The camera cover is sapphire crystal. Look at the details around the sim-card slot. It’s extraordinary!