Agreed. Realize that to play on-line you have to seek it out, make an electronic funds transfer of one kind or other. It takes some work, so only those committed to playing/learning make the effort. In a casino people want to play the hottest game. Right now it's poker. 10 years ago it was BJ b/c of the MIT guys. Before that it was craps. They are in a casino on vacation for fun. The on-line players are there to learn and play serious- mainly.