Keen and Graev have a link to the Quantic Foundry Gamer Motivation Profile which asks many multiple choice questions about how and why you play.
I don’t know about you, but I can’t resist those Facebook quizzes that reveal such daunting info as What Kind of Cheese you are, or What Starship Captain you would be. I really thought I should get Janeway, but call me Picard. I’m still feeling whiny because I never got Luke Skywalker in the old “Which Star Wars Character Are You?” quiz. Clearly my head is never where it should be.
You will note in the Quantic survey what a cool, nearly Zen-like being I am. As you suspected.