It is the reality of today; casino doesn’t record any more amazing benefit than before. The casino of Cardiff had a nice development until 2003. Since then, casino revenues are down of 5.7% per year. In six years, the revenues declined from 14.5 million to 10.8 million. Many reasons can be given such as the hard competition lead by the other casinos, the national lottery and the fact now, it is possible to bet online and play casino on the Net. We can also add the fact that people have less and less money with crisis. 95% of the revenues are form slot machines. Landed casinos have a lot of problem since online casinos are allowed or only accessible to everyone. And the situation touches everyone, Las Vegas, France ... Casinos have to offer a largest offer today and be able to adapt their market to the customer who is more exigent.