Wouldn't it be nice to have a rich, dark, sexy, gorgeous, gory hopeless game, with hopeless stars burning hopeless overhead night after pitiless night as the characters hopelessly stalk and are stalked?
But you wouldn't, because the players are too fun. They would laugh and eat and they'd sooner or later find a way to kill Dracula and they'd fuck his face with fish fingers--and that's good. That's the good stuff. That thing I described: it'd be a good book. It'd suffocate my real players after a while, not enough of the real them would be in it. You'd wish you just read it or watched it.
And that's, in the end, how games work, I think. How the best games work: the GM (and maybe the game, whoever wrote that) brings the beautiful, and the players bring the fun. And you never know which one will win in any given moment and that's the wonderful part of it. Just when you think it'll just be fun, the grotesque beauty of the pupa splitting apart to reveal your own awful clone hits you over the head. And just when it's majestic in its direness, someone distracts it with a chicken and natural 20s it right back down to the pile of hoary tropes and adjectives it was sculpted out of.
It keeps you grounded, it keeps you guessing, it makes you laugh and then hope and then ooh and ah and squirt milk out of your nose but you don't know which when. And that's what it's like being in the middle of good drama: the confidence that a story will contain everything the world might contain yet not knowing which one's coming up.
It's probably why only boring people like comedy games--they aren't fun enough to guarantee fun will show up. And also why only boring people like ones which enforce their beauty and style at every turn--they don't trust their GM to be shrewd enough to curate the experience.
I can see a Theory Of Gaming coming up with only that principle--keep the Beauty and the Fun in constant conflict--and don't try to tumble either way, or you fall into predictability. You will know what's around the next corner and you'll be above it. And you shouldn't ever be above it--you should be in it.