2€ also because of nationalized healthcare, so it's like everyone has insurance. With insurance in America, I pay $10 for 3 bottles of insulin, which lasts me about 45 days. So what's that? $0.45 per day? Clearly not comparable situations. Two more things, though. 1. What's a 'days worth of insulin' actually mean? If you eat more carbs, you're going to need more insulin. Are they like me, and eat a low-carb type diet so insulin needs remain low? Or are they stuffing their face with McBeetus, Starguzz, and bakery/cakery options? 2. Of course, like others have said, I use the most generic type so my insurance company pays the majority, but I choose to do that rather than go for the most expensive types.