For a simple reason: because we want DietBet to be as effective a weight loss tool as possible. We’ve partnered with Brown Medical School to conduct research on financial incentives as a motivational tool for behavior change, and all of our findings confirm the importance of having some money on the line. Just the idea of earning money isn’t enough to motivate people to make real change: it’s the idea of losing money that will push you to really lose the weight. With pledge amounts starting at $10, we strive to have a selection of weight loss games that fit every player’s budget.