Games Should Be Like Female Orgasms
Gamers with Jobs has an excellent look at the pacing of games, and their resemblance to sexual response cycles. From the article: "The female sexual response cycle appears as a gradual (sometimes maddeningly so) upward slope from excitement to orgasm, with several 'false peaks' in the plateau region. Anyone who's ever performed cunnilingus while kneeling on a hardwood floor can attest to the validity of this representation. The male cycle differs radically. The transition from excitement to plateau in men is rather rapid, represented by a near-vertical line. The plateau stage is then almost horizontal for varying amounts of time (see: premature ejaculation) followed by another extremely rapid ascent into orgasm. Playing video games often reminds me of the above."
There's a Nolan Bushnell interview linked to slashdot somewhere in the last two years where he talks about Atari's past and part of Breakout's design. He mentioned that one of the intentional goals, though the player didn't realize it, was to encourage the player to get the ball "stuck" so that the game would play by itself for a short while. The player gets a break from the paddle while watching the fireworks, feels a sense of accomplishment by getting the game to do that, and can get back into the game after that brief interlude.