@Boris
take a look at steam hardware surveys and see how many gaming rigs have quads
your predictions for gaming are not very valid, by 2014, we might see >50% of games be quad optimized, but not much more than that.

why would i spend 1000$ on a cpu, when 300$ does just as good, and might be 10% worse in 4 years, when 300$ then could get me something that stomps the 1000$ cpu of today

you really should look into the limiting factors for cpus in games and try and assume how that will change in the future. do you really expect the requirements for games to increase 4x, when in the last 4 years have maybe just doubled.