Yeah moderate success is good enough for the average person that doesn’t want to spend anything compare to some FTP games I have played where you need to spend 100’s to barely even place last on the leaderboard or get far enough in event to get any of the rewards that matters. Hearthstone Reward track is based on time spent and monthly rewards stop at reaching legend which you can do every month 100% FTP but if you want full collection especially in gold its going to cost.