The explanation is right there in the article. PC gamers play games a lot, but they're also the fussiest gamers on Earth and don't buy many games. Part of the reason is the very nature of PC gaming - lasting value. When you buy a game like Civilization IV, The Sims 2 or World of Warcraft, you're basically set for months (nevermind mods and stuff). There's nothing like that on consoles. Most console games are expendible goods - buy a game, finish it, on to the next one.There's a relatively small group of hardcore console gamers who are big spenders.

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