Actually (And this is not a joke...), here in Norway there are laws against how much and how 'flashy'/'animated' lights you can have on slot machines. I read an article in a newspaper some time ago (addmittedly not a very good one..), where some scientists had discovered that men got sexually aroused by the flashing lights, and this apparently make them spend more money on the machines. I don't think the article mentioned anything about girls though.. Maybe worth looking into?? ;-)..

Øyvind