Since the beginning that I joined the site (9 months ago) I buy each round 50 lottery tickets without any luck for the moment.
A number of lotteries are more and winners are only ten people on a weekly basis and that's why winning chances are very less in this lottery system. That's the main reason I don't put my money to buy these lotteries. Also to try our luck every week site has provided an option to buy some free lotteries then why would anyone need to waste their money to buy these lotteries?
I think you are referring to the free lottery tickets you receive by doing the free rolls? I opted to disable this feature and instead receive extra reward points for every free roll as I find these more interesting.
For sure, chances are very low to win a price in the lottery, but if you don't participate than your chances are 0 .