Brah, even if I'm scientifically wrong about it (and I'll admit I very well might be), my own perception has always been that I personally barely notice a difference.
The only time I notice when something's frame rate is different is when it's too low and I notice a choppiness.
I'll admit there's a slight change in smoothness when we go from 30fps to 60fps. But then we also have to remember that Youtube compresses the stuff out of its videos so quality itself drops significantly there too.
I dunno, it just doesn't seem like that huge of a deal to me, and then there are people who swear it's a huge deal. I mean cool if you can see it, I can't.
And besides that, it's hardware intensive to run on 60fps, record using fraps, and have smooth shaders going all at the same time. And for some reason my Adobe Premiere pooped out on my footage when I had recorded at 60fps and gave me a really hard time rendering it so it's not something I can really afford to do anyway.
My ultimate point is: I don't care.