It's a shame they want $30 for shipping to Europe, I've seen a few articles from these guys and would pay for a physical copy, but not $70/6 issues.
Same here, so I wrote a Python script (Selenium) that downloads the new issue and emails it to me. The quality to price ratio is amazing, I love Nautilus.
And really at this price people spend more time thinking about how much to spend than they are making per hour in wages.
You can say: it's too much hassle to refute the null hypothesis.
(Ie they are equivalent enough.)
Books are a different equation, a different tier if you will. With a newspaper, a large part of what you are paying for is currency. Books can be timeless. Magazines are somewhere in between, immediacy of info is deprioritized somewhat in exchange for increased depth, but not as much as books... Old magazines lose relevancy, just not as quickly as newspaper.
Dollars per time spent reading is a poor metric, IMO.