Is there any content on Roku that can't be accessed directly on a PC, smartphone, or tablet? Say, for example, you had a Roku 3 at home and a SlingBox PRO HD with an extra unused port, would there be any reason to connect the Roku to the SlingBox PRO HD? One thing that came to my mind would be the ability to select Audio Only on the Sling Player on a smartphone. That would reduce the amount of data being used and probably reduce the drain on the battery. Other than than, I am hard pressed to come up with a reason to "sling" from Roku. What you my fellow members here think?