In the US, politicians make a big deal about gambling. Some states don't allow casinos, and allowing casinos or slots is a controversial subject. Some view gambling itself as immoral, or that gambling institutions prey on the poor. In recent years, the US government has made in extremely difficult for foreign online gambling sites to serve US customers, out of fear mongering about consumer safety from well-respected international organizations. On the other hand, the government continues to push its own lottery -- because it really doesn't give a smurf about if people lose all their money, as long as they lose all their money to the right group.
It is true that pure chance games like slots are arguably scams in that they are designed to make you lose more money than you win long-term (though at least in games like roulette and craps there is an entertainment factor). But they all pale in comparison to state and federal lotteries. These are as much scams as snake oil salesmen, preying on nearly impossible dreams in return for profit.
The most infamous one is the US Powerball, which frequently has a jackpot in the tens and hundreds of millions of dollars. The odds are impossibly high, but that does not stop people from pouring thousands of dollars into it over a period of years out of misguided notions of their chances. In response, someone decided to make this excellent simulator, which demonstrates just how ridiculously broken the lottery system is.
On max speed, I've found it runs through about 1 year every 1.5 seconds or so. Open it in its own browser window (it won't run in inactive tabs) and let it run for a while. See if you can win any of the top three prizes. The other day I let it run for a few thousand years without winning any of the top 3, and with a return of about 7-8 cents on the dollar (~12-13 cents with Power Play, but you end up with a greater net loss due to the increased cost of the tickets).
What do you think of the lottery? Do any of you play it (I promise to refrain from yelling at you, but it is my sincere hope you are persuaded to stop)? Any other games of chance?