This is something that we realized some time ago, and a few weeks back at Nvidia headquarters, Nvidia CEO Jensen Huang also confirmed most new games don't utilize DirectX 10.
The games of the future are still mostly a DirectX 9 games with a few exceptions and the reason behind it are consoles.
This year won’t be so different as big publishers want to
sell games on PC, Xbox 360 and Playstation 3 and if it can run well, even on
Nintendo Wii and older consoles such as Playstation 2 and the original Xbox.
If they program for Xbox 360 and Playstation 3, the hardware
inside is stuck with DirectX 9-like graphics inside and this won’t change at
least until the next generation consoles comes out. DirectX 10 still has a few
supporters also due to the fact that it runs only on Vista, operating system
that is not that popular and the introduction of Windows 7 will do it good.
Don’t be completely discouraged as we still have a few
companies who will program games with the PC in mind and Crytek is a good example.