Well as far freebitco.in lottery is concern, why we should put a quite trust about their lottery. It's an obvious that chances to win there is really low even you bought a bunch of tickets. Back then, there was a discussion if by any chance, there's a case that the one who won from their lottery has also an active account here in bitcointalk but unfortunately no one (afaik) have the claims like that.
So in here, it's part of their strategy to bring more visitors to their sites aside from their faucet.
Everyone can use any marketing tricks to bring more customers. Freebitco.in have this kind of technic and it for me is very fair. They give for free a lot of Bitcoins every month, and their never fail.
Lottery or high-low game is just kind of gambling, and everyone who is starting with that should to know that can win, but also can lose everything.
In other way it looks like you get something for free, you can gamble that, and you can win even more. If you lose that what you get for free, actually don't make you loser, it was just not lucky day/game for you.
So you do not pay for your electricity then? The amount of electricity you spend, to browse to this site and then to solve the Capthca is more than the few Satoshi's that you will receive from it. How much are you being paid per hour in your job? Take that hourly rate, and divide it into minutes, and then calculate how much you get paid per minute.
Compare the amount of money you get paid per minute in your full time job, with the 1 to 5 minutes you spend to login to freebitco.in and then to solve that Captcha, then add the electricity you spend to do that, and see if hourly payout of 300 to 500 Satoshi's will show you a profit? ... My guess... NOT.
It's a fun thing to do, but it's definitely not FREE money. The only FREE money, will be if you WIN that $200 and there are no proof that it ever happened to anyone in the 3 to 4 years of this sites existence.
They have mastered the method to draw people to their site, with the promise of FREE money, < Both hourly and in the Lottery > but nobody has ever reported that they have won ANY of the big < carrots >
Nice site, nice people, but I feel that we are getting fooled by these juicy carrots. Greed just clouds our judgement.