Why don't people want free money?
In a paragraph then, the deal is: online casinos are in a state of cutthroat competition for eyeballs, so they offer huge bonuses, like $200 bonus when you deposit $200. The catch is that you are forced to play a certain amount of casino gaming to "unlock" the bonus, and while casino games are normally a no-brainer money-loser, this is not the case when you're playing with $200 of their money. Indeed, if you play optimal blackjack (for which a chart is freely available), you stand to complete the requirements and cash out your original $200, plus somewhere between $120-$250 in bonus, depending on how your cards came down. Even more, I've offered to guarantee people their original $200 when they sign up through me since I get an affiliate kickback -- so there is officially zero risk, and about 3 hours invested, and STILL it's like pulling teeth to convince friends to take free money.
Very very strange, I tells ya. If anyone wants free money, email me or reply and I'll happily send deets, the whole situation is just so odd.