I've long forgotten where I discovered this story so you will have to forgive me for not giving credit where credit is due. And even though I am sure I've shared this tale before, I read something that made think of it and I want to share it with you again.
The story goes as this; During the filmming of a film, a producer wanted to know how much it cost to do a visual effect shot of the Red Sea parting. The fx person thinks it over for a moment and says well for a million I can part the whole sea. For fifty-thousand I can part just one side, and for fifty bucks I can have a guy look at something off screen and say, "holy crap, the Red Sea is parting!"
Take from this story what you will.