Casino and Sports Betting make a lot more money than Poker and are easier to convert.
For Poker, many people already have a favorite poker site and it's hard to make them change. You need to have something really unique and attractive to sway them.
Casinos and Sports, on the other hand, are much easier to draw people to and I feel are less saturated right now than Poker is. Players will join multiple Casinos and Books, since lines and promotions vary so much from one to another.
Example, Player X likes the hockey lines on BetUS so he bets on hockey there. However for Football, lines are often more to his favor on Sports.com. Then, on Bodog he likes the Basketball lines. You get the idea. With Poker many players try a lot of sites, but the majority stick with only playing on one or two.
The same for Casinos, with a variety of themes, games, etc... a player will often play in many different sites.
The bottom line though is an average Casino/Book player makes you a LOT more money than an average poker player.
