What kind of gamers are you looking to get to play against each other? Actual professional gamers or amateurs?
It'll be pretty difficult to find people who would be willing to play in what's basically a casino, I don't think it's a good idea to try and get people to come over to a physical place and have gamblers make bets on those matches.

I really doubt that the quality of those games would be enough and how would you even calculate the odds, if you're not working with professional teams? Or will you pay pro's to come and play there?