Nevada already had legal online sports betting within the state. With just 4 million people the reason that sports betting had enough liquidity is that bookies across the country call in their bets to people in Nevada who have online accounts. I just can’t see poker/bingo/casino games making that much money (even with all of the gambling addicts in the state).
This only becomes big if Nevada can make a deal with California to allow betting across state lines. That is the part of the legislation that can change things.
If you think it will grow then this is the time to move to Nevada and start the Affiliate License process.