With all of our experience let me tell you that 5% is absolutely normal for the online gambling industry. Especially if it includes affiliate payouts. Casinos have to make money. More players, more money they make. One of the industry’s trade secrets is that players play more not at casinos with a better edge, they play at the casinos which pay their affiliates better. Affiliates are the real gambling traffic owners. Go to any of the industry’s conventions, such as iGB Affiliate, and you’ll see it’s impossible to convince any of the significant industry players with just 1% house edge even if you are ready to give away all of it. 5% house edge is a very thought out number.