Of the four products I appear loyal to, none have ever given me an extrinsic reward. No punch cards, frequent-purchasing discounts, or Exclusive Access VIP Status (Now! With Better Badges!). No leaderboards, no contests, no discounts. But all have given me something far more valuable: enduringly rewarding experiences.
They have upgraded my personal skills, knowledge, and capabilities. They have made my life better. They have made ME better. THAT is the ultimate customer reward. When you give your users that, you still won’t have loyalty, but you’ll have something sustainable, robust, and honorable.