Well that's drama dude, it's kind of the whole idea behind the art form.
The notion that you are getting a singular experience that will never, ever be repeated again. You can't rewind it and you can't give it to your friends to borrow.
I'm a drama major/or was, and I can remember doing plenty of runs where I was doing the same play, but each night the blood would splatter different, or so and so might punch in a different way. That's what makes it more awesome, in my opinion, but also creates in it a very short lifespan in people's memories.
Meh, I feel like I'm getting too deep.
Woo hoo.