since noone will answer the question (about sports betting as a percentage of Nevada total casino win) I'll tell you
it was 110 million in 2002... probably not much more in 03.
thats 1% of nevada casino gaming win.
Yet looking at global internet gambling its a whopping 42% coming from sports (going down to 33% in 2010).
Just for a moment imagine if that 42% from 2004 (or 3.2B) was actually only 1 percent of the total as it is in nevada... That would mean Casino, lottery, and other games, would amount to about $309 Billion, for a global total of about $312 billion ($607B in 2010). Now that is something to talk about. None of this $18B, $70B chump change...
The thing is that Bill Gates and friends has a plan for the future of internet use - and though noone knows what it is yet, one thing thats for sure is that he wants it to take as long as possible...