Much like the music industry ~15 years ago, their model is still very profitable. As mentioned in the linked article, their disruptive competition (Netflix et a

Much like the music industry ~15 years ago, their model is still very profitable. As mentioned in the linked article, their disruptive competition (Netflix et al) has much less revenue per hour of content consumed. To explore alternative business models would potentially cut into their revenue and threaten relationships with content creators (who they would no longer be able to pay as well). I imagine that this inertia towards change will allow disruptive competition to eat away at their customer base for a few more years, until their attrition is so high that restructuring and providing a-la-carte/on demand service is not just a good, pro-active move to secure their future, but instead an important step to stay in business at all.