I think this could be a very good move for people that live in countries/states/provinces/areas etc where these magazines are hard to get hold of, or often impossible.
And some people don't have the money for a subscription, or the country in which they live these subscriptions could prove difficult to reach them, or impossible. And some people travel a lot, so doesn't have a specific, consistent place to have their subscription delivered to.
But it is easier to get on the Internet somehow, from anywhere, anytime, in the world.