There's also another type of fan, perhaps in the minority: those who go to races because they are "events". This is true big-time in Formula 1 (Monaco being the most obvious case I guess). In IndyCar, there are certainly fans like this at some of the street races (Toronto for sure, I'm guessing the others too). Sometimes they might talk other friends into coming for the party. Once in a while one or other of these people might find they really like the racing as well as the beer, food, midway games, and scantily-clad sponsor representatives, and become more ardent fans of the racing in general.
I guess the message isn't really different from "mythoughtsareracing" 's initial post about "Casual Fans" - drag one to a race and see if they like it.
