Following a court ruling from October of 2007, Brazil has recently began enforcing a sales ban on Counter Strike and Everquest under the claim that these games are harmful to consumers' health and encourage the subversion of public order.
Complexity, Rio, and more will compete in the Championship Gaming Series Individual finals this weekend, crowning the best in each game independently of their franchise's weaknesses in other games.
The Nielsen Company released its Top 10 lists for 2007, including the list for the top 10 games in the US. I'm happy to inform the CS made the list twice with regular Counter Strike in 6th position and Counter Strike: Source in the 10th position. They also note that the average CS player spends over 9 hours a week on the game.