That's the thing - I think anyone who buys Titan now, can pretty much sit back and relax for the next 5 years, safe in the knowledge that his graphics card surpasses PS4 by a comfortable enough margin that he can run any game in 1080p and at better settings than possible on consoles, as long as PS4 is a top tier platform.
Powerful GPUs effectively no longer become outdated, thanks to consoles. On the flip side there is not much progress in visual fidelity until the next "next generation" hits.
Sure if the goal post just stop moving. The problem with no matter how powerful that dx9 gpu from when the x360 launch it cannot play bf3 or any other game that needs dx10.
So you are only good until dx12 is anything higher is dx11.1 is announce.
The real reason for the damage control from nvidia is for the first time both consoles run on the same hardware as PC. Now the ps4 is pitched as a easy to developed for PC developers. You have game developer just trashing windows 8. Now the nightmare of simcity.... I see a lot of PC dev moving to consoles. Way more money to be made...