Believe it or not, I don't think there are as many as we think. 10k would be my guess, based on the fact I see a lot of the same guys on all the major forums. I would define hardcore sports gambling as gambling almost every day, several games a day, betting significant amounts, and belonging to at least one forum.
There are probably hundreds of thousands or even millions of CASUAL sportsgamblers, guys that only bet one sport and bet smaller amounts and are not using the net much.
There are probably hundreds of thousands or even millions of CASUAL sportsgamblers, guys that only bet one sport and bet smaller amounts and are not using the net much.