So? Most of us do the same thing with our computers.... we'll volt mod our cards and stick our entire computer outside in the middle of winter just to get a few hundred points higher on 3DMark. It's not like we get a massive FPS gain from doing that, but it's just fun to compete and see how far you can push your system.... I was practically dancing when I got a high enough score to hit the top 5 for 9800 Pro's in 01(with only a voltmod and air cooling). It's not like I gained more than 3-5 fps, but I was proud that the computer that I built was able to compete with the systems of other skilled overclockers.
Just my two cents :)