Good news for humanity, bad news for the print industry. For the last few years, the only time my wife and I bought magazines was at the airport before a flight so we had something to read for the departure and arrival when we had to "shut off all the devices with an on/off switch"
I used to buy print at airports also when I used to fly several years ago… of course, at that time, laptop batteries didn't last even a 2.5hr flight unless you got lucky and found an available plug in the boarding area. Plus laptops were bigger and noisier.
Nowadays you have Air/ultrabooks, iPads with 10hr batteries, and Kindles so one never need actually resort to dead-tree.
I don't know what percentage of overall print volume is covered by airport purchases, but I bet this spells bad news for the newsagents and bookshops at an airport. I wouldn't like to own one of them right now.
In the UK the airport 'news'agents now have entire walls of refrigerated bottled water.
There is no law in the UK requiring airports to provide free potable water to the public, so at around $3 per bottle this is an extremely lucrative consequence of security regulations.
Compared to that revenue, selling magazine is old hat!
* I am always delighted at the provision of water fountains in US airports. O'Hare even has ones specifically designed for filling bottles!
