I find adsense is good for industries that dont have many affiliate programs. When i sent traffic to any affiliate program i measurethe cpc i earn as the final figure. With casinos that’s around the $10 mark, with some programs it’s as low as $0.20. For these other programs adsense makes more sense. I only earn around $700 a month so far, but i have them on 2 sites that took no effort, and the other one is waiting to get ranked in search engines.