It is funny, perhaps it is a cultural thing. In the Australian top league the ABBL 11 of the 16 teams are supporters, as well as most of division II. I was looking at the Taiwan top division for some graphics to decorate my Buzzerbeater Wiki and even though it is a similar sized country (650 in Oz, 450 in Taiwan) and fairly affluent there was a total of 1 supporter in their top league and I think only 1 or 2 more in all of second division.