Gamification, Presents, and Gifts
Thought Leader 
We're currently trying to build a higher engagement, and in particular trying to find champions within the end-user communities of our customers. Our technology does not allow us to gamify within the product but we are able to track usage of individual users.
How would you approach the end users with the highest usage? What is your "excuse" to contact them?
Do you "reward" them with extra add-ons (just for themselves, not the whole team), Amazon gift-cards, anything else?
Any best-practices to develop new champions, strengthen the relationship with them, and build a guiding coalition are welcome 