This stuff is pretty old news. I only physically bought the first iteration of WoW, since then there have been like 3 xpacs, SC2, now D3. Companies like Valve have been pushing the concept with all their retail titles over Steam for quite a few years. With music this evolution has happened simultaneously but gone further with streaming. This step is as significant as any other such as from tape to cd, or cd to mp3. Sure I have a few hundred albums on my microSD card, but when my phone has service, I usually listen to Pandora.
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