I was just making a wish list, to start with, not and actual analysis of what is proper.
Consoles seem to have the edge when it come to game expansions or sequel's to popular titles. in that most times the same console is used for the expansion, where as PC games Vid cards, and processors are constantly improved, so that a machine you played the game on originally will not play its expansion or sequel for squat. Which is kind of frustrating seeing as how you very much enjoyed the game as it was on the older machine, and now for better shadows, and a wet look you suddenly need a new machine to play the same game, with a different story.
On skyrim by the way I downloaded all the upgraded graphics, the high res, and I run many mod's, including all the better bodies, with hardly any hit to my frame rates, and Skyrim with out tweaks actually only runs on 2 core's, a very old and much updated engine with roots all the way back to Morrowind. And it is a very nice looking game.
I just sometimes feel that some graphics enhancements to some games are really un needed ( or rather add very little), and only promoted to sell the new vid cards. Smooth game play and good games, and common sense compatibility with slightly older machines I think is just good sense it seems like to me, and allows people to have more money to actually purchase new games.