Haha, I want that to happen when I beat games. Unfortunately, I'm too ADD to sit through most games these days. I tend to overlook storylines, too, usually because I'm too involved in gameplay (ex. Fire Emblem Series) or because the story is almost non-existant (ex. SSBM.)
Actually now that you mention it, I remember when I finished Ninja Gaiden: Black for the first time. I felt a great deal of accomplishment, despite the fact the I beat the game on one of the lower difficulty levels. I felt like I was challenged and I rose to the challenge all while enjoying excellent CG eyecandy along the way.