Enthusiasts, and my humble opinion, are free advertising. Am I saying you need to go out of your way to keep them happy?-no. That being said, you have to understand who your fans are, and what influence they have on the industry. Enthusiasts are one of the biggest upsell opportunities out there- they can buy add-ons, fast lanes, collectible merchandise, etc. Even what @johnjniehaus did is a prime example of enthusiast upselling: getting non enthusiasts to buy can be a difficult sell.