The risk reward is never worth it. Even if it is a guaranteed win, or close to it, the one chance that a fluke occurs makes it not worth it. You risk 800 dolalrs to make 100, that doesn't add up. I would never do that in real life, so I won't do it with our fantasy league. I think the only real value is when you think an underdog will win. Otherwise, most of the time its not worth it.