Gambling site was built by the owner to give him the profit of money he has spent. Gambling isnt a charity foundation that give people free money anytime. Although there are some professional gamblers out there, the site owner surely will be always trying to beat all of them. Thats the fun side of gambling, where we could test our luck and skills combined against the house. Maybe you couldnt win everyday, but if you bet responsibly and patiently, you couldn't be disappointed so bad.