The prices of their courses don't really change much based on the difficulty level. Whether it's a beginner course or something more advanced, most of them seem to be priced around the same €25 mark. So, it's not like the tougher courses are costing way more. That's actually pretty cool because it makes it easier to pick and choose what you want without worrying about your wallet getting hit harder as you move up. Of course, the value you get might differ depending on how deep or specialized the course is, but the price tag stays pretty steady. Basically, it's a flat rate vibe across the board.