Sorry that you already knew that, it just wasn't clear to me by your post. And so many people DON'T know the differences.
No biggie. I'm glad you said that. I needed to be more clear. Plus, anyone reading who didn't know now does.

I don't care how good the graphics are, but if they're 3-D you can get into the game more. (I think) It's more realistic. Sound, also, adds much to the game. These both add much to the story especially.