Don't believe we have a need for excitement. Look how many adventure movies and tv shows have been created. Look at amusement parks, carnival rides, and look at the lines!
Adventure sports still can almost be called a rage. Sometimes folks can read about the adventures they crave in a book.
Look at how people buy sports cars, 4X4's, sportsbikes, and ATVs. No they aren't going to race in the Indy 500, they aren't exploring a wild safari, or racing in an exotic endurance race. No these are the wheels of soccer moms and couch potatoes.
Excitement it is a need.