If you're strictly talking about the hardware then fair enough, but for me the difference between console and PC is more than that. It's about the overall set up. After spending an 8 hour workshift in front of a computer, i'd rather go home, grab a beer, sink into the couch and enjoy my flat screen tv. Also, the whole xbox interface provides me perfectly with the gaming experience I want. I can handle whatever graphics i'm missing out on purely for the atmosphere, being able to quickly scan what my friends are playing, have a party chat, or simply sit back in a comfy chair and enjoy my game like a cinematic experience. To me, you can't enjoy the immersive factor of a game as much in front of a computer screen as you can with a movie set up, and Skyrim is a game I want to be immersed in.
That said, I know some people get that entertainment set up for their PC's, get a big ass comfy office chair, a big monitor set up, etc. The difference for me, though, is that I already have a couch and a TV, so what is the extra incentive for me to get extra stuff just to view the content on a different platform?
There's no real answer to these questions, it's just horses for courses.