Still, it sounds a lot better than some of the 'healthy eating' vending machine gimmicks. Most (in)famously, in my area, are the ones that introduced the "heart smart" stickers by raising the price of unhealthy foods by 50% and raising the price of healthy foods by 25%. I guess in some sick, twisted way that's a "discount on healthy foods" but it wasn't very useful. Since everyone knew the machines would rip you off regardless of what you chose, they just bought their candy bars elsewhere.