Having said that I wonder if that example with the Boston Globe is sort of the old "Be Radiohead" example. In that situation Radiohead sold their album online for whatever you want to pay. It was touted as a good way to do business, because Radioheads sold a lot.
Later someone wrote satirical article telling other bands how they could do the same. Step 1 was "Be Radiohead".
In reality the reason for all the sales were ... they were Radiohead.
I wonder if the Boston Globe is at that scale where they can do that, while other places might not see any new subscribers.