The Michigan Lottery has a daily "spin to win" game and I do that daily. It takes 20 seconds and if I win free plays, great. If I win a "2 dollars off a 20 dollar purchase" that goes unused.
Ironically, my wife, who is really good at math, still buys a couple "Lucky for Life" tickets a month. If a jackpot goes really high, I'll spend two bucks just for fun but am fully cognizant that my odds are not any better and it would be just as effective to give that money to an intersection beggar.