It's currently popular to theorise that nearly all gaming will end up free or nearly free at some point, distributed via browser and monetized through ad support, microtransactions or scalable subscription models. Faith in this business model's been instated by the early success of many free-to-play web-based MMOs (many of them for kids, mind).

But what about the arguable king of all MMOs, World of Warcraft? Will it ever get on the trendwagon and go free, or offer a free option, at least? Not so much, says Blizzard COO Paul Sams, as part of an in-depth Gamasutra interview:

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