Why wouldn't you get the PC version...the game is made for it.
Gaming rig PC's can become prohibitively expensive to keep up to date with high end games that get released. For those people that want to streamline their required purchases for games, consoles make sense. To most non-pc gamers, mods don't even factor into the decision making process of where to put money for gaming.
I would personally like to have a pc capable of running games like Skyrim as well as future titles down the road. For now money isn't abundant, so I'm stuck on console (PS3).
One thing is for sure, if consoles are going to embrace (not halfheartedly) mods for Skyrim, PS3 better get there first. I would jump to 360 in a heartbeat if Sony puttered around about mods while MS had it fully supported, & that's not even bias due to the network outage.
Sorry to get off topic.