I don't play games as an escape from the outside world, but in order to supplement it. Preferably by experiencing something beautiful. Whilst I obviously think the most important trait of a good game is beautiful game-play, having great visuals is a very close second.
In fact, even though it is unfashionable, I am not ashamed to admit that I am a huge graphics whore, who will often dismiss otherwise perfectly playable games due to sub-par art direction. Because even though I have chosen the lifestyle of an avid gamer, life is still too short to be playing games that aren't great experiences.