Board games with bitcoins

I am thinking of making a website where users can play board games like- monopoly, backgammon, yahtzee, stratego, risc, battleship, dots and boxes etc.
A similar website do exist where you can play all these games with players worldwide. But, that website doesn't have bitcoin thing in it. Now, I will be bringing bitcoins concept, for example if two players want to play, they can choose to play for fun or for bitcoins against each other.
If you are a player on the website, what games would you expect on the website?
Or apart from games what else would you expect on the website?