It's still growing.
Everyweek this site has more players. (some guy has a chart showing every day's improvement since they went to no rake).
WPEX is putting out full page ads in Magazines.
The Fish ARE starting to migrate.
And the number 1 selling point?
If you are a break-even player, you automatically become a winning player.
If you are a winning player, you win more.
If you are a moderate losing player, you become a winning to break-even player.
If you still can't come out ahead, then you now know to take up checkers.