>> Games are not the only thing out there.
of course not... they're just the only thing that matters! 😛
Seriously though, for a great number of systems, if not majority, games are the highest-demanding applications. Sure, there are people who do CAD & 3d design, professional graphics etc, but they are after all a minority -- however large one. And I'm not 100% sure that 2d graphics (photoshop etc) are as much dependable on raw performance (CPU MHz etc) as much as memory and bandwith...