Extreamly good graphics. Nobody I know is an oldschool gamer like me.
Graphics are a decent chunk of a game.
They shouldn't be the reason you like or buy the game, but it should contribute to it.
Good graphics is just how the industry lets people take in beauty, whether while shooting people or platforming, or solving a puzzle.
EDIT:
Also, I seem to have OCD when having multiple paths in video games, so I check both, and if I go down the first one and it turns out to be the main path, I have to turn back and check the other one.
Not really as much the dev's fault as mine.