$20 bucks a year? For Iditarod? Sounds as if someone has never heard of microeconomics to find the correct market price for your product.
A tee-shirt and coffee-cup with some kind of dogsled design printed on it might be worth the $20 annual membership. The real business is tourism, the kind that actually comes to Anchorage for the festivities and start of the race and then forgets about it. Some also go to Nome for the finish, but real jet-setters are off to Aspen or the Riviera or Dubai by then.