Oh, and note on the wager share program they’re pretty much completely robbing you. In the example above with blackjack, the player would need to wager 5000!
For slots it’s even worse. A typical house edge for slots is 5% (see http://wizardofodds.com/microgaming for reference).
Your take of the money wagered is [House edge] x [Rev share %], just like in the above post. For 40% rev share, this number would be 0.0125, or 1.25%. With wager share, it’s 0.90%. You’re making 28% less!
The only nice thing about the wager share is that you get paid regardless of whether the player loses or not.