The study neatly illuminates the sad positive feedback loop of lotteries. The games naturally appeal to poor people, which causes them to spend disproportionate amounts of their income on lotteries, which helps keep them poor, which keeps them buying tickets. The saddest part is that these destructive games are run by the government.
via Lotteries – The Frontal Cortex. A lottery is quite possibly one of the stupidest things to spend money on.