Previous discussion: https://news.ycombinator.com/item?id=4398665 https://news.ycombinator.com/item?id=4398665 Also note that winning a $4 ticket will net you

Previous discussion: https://news.ycombinator.com/item?id=4398665 https://news.ycombinator.com/item?id=4398665 Also note that winning a $4 ticket will net you $6 :-) So the actual expected ROI is -64%