If they did turn into a subscription model... what would you be willing to pay per month? 7.99-9.99,maybe 19.99?
Maybe about the price of a print magazine, though.
For some reason, I've started receiving a few magazines at my house that I never asked for: Popular Science, Wired, and Cosmopolitan. They show up for six months, then stop coming. A year later they start again.
So even print is not that cheap it seems