Something such as playing the lottery is clearly a game of chance. You select your numbers and then wait to see if you are lucky enough for them to be selected. Most people are even aware that the chances of them winning are stacked against them, but it can be useful to put it into some kind of perspective.
For example, do you know that there is a greater chance of you actually being killed on your way to pay for your lottery entry than the chances of you winning the jackpot? To be honest, you are also more likely to die from being left-handed and using a right-handed item incorrectly than winning the lottery.
The list goes on and on when compared to some lotteries where the chances of winning are in the region of 1 to 170 million. You are even more likely to win an Academy Award than the lottery, and yet we still try our best even though we have very little chances of being successful.
So, maybe think about the chances before you go and spend all of that cash.