If you play in premium mode utilizing Sweeps Coins, you can eventually exchange them for some pretty generous actual-life prizes. https://eggcs.com/%EB%B9%A0%EB%A5%B8-%EB%8C%80%EC%B6%9C-%ED%95%84%EC%9A%94%ED%95%9C-%EC%88%9C%EA%B0%84%EC%9D%84-%EC%9C%84%ED%95%9C-%ED%98%81%EC%8B%A0%EC%A0%81%EC%9D%B8-%EA%B8%88%EC%9C%B5-%EC%86%94%EB%A3%A8%EC%85%98/