Probably because they do not offer full odds. I just quit betwwts because they payoffs are ridiculously low. I bet harness tracks and they only offer 100-1 odds on pic 3s and pic 4s. I almost wonder if they make the bets for you and then if the win is more than they max amount they just keep the difference as their profit. Off to pinnacle now to try that book. They offer 7% which means last week I would have gotten a $280 rebate while betwwts just gave me $115 which is another ripoff. Why I stuck with that site is beyond me.