Take this with a pinch of salt, I think, but Techgage is reporting the findings of a recent Nvidia conference call in which the graphics company suggested that PC games revenue will pass that generated by consoles in 2014. The blame for this lies with the rapid growth in digital distribution, microtransactions, and the free-but-not sector (as I am now calling it).
It also features the PC performance vs consoles graph (above) which made me laugh with the blatantness of it. Yes, top end PC graphics actually are 900%+ more powerful than console hardware. Thanks, Nvidia.