Although this promotion has ended, as TheQuin has pointed out, you can still buy a ticket for 0.00025 BTC. It's $2 currently, an amount most people can afford to lose, but you will have a chance, although a very slim one, 0.00006862% as of right now, but still a chance of winning a Lambo or $200,000 in BTC if the winner opts for that. Since you can't win a lottery without buying a ticket, I think it's worth buying one for this particular event (which myself I did ). I did it because among other things, I know that FreeBitco.in is an honest site. But don't buy tickets even for $0.5 each from the newly appeared sites that run "similar" lotteries. Don't give your money to the scammers.