I strongly believe that unless you have a site that experiences server crashing traffic, any form of CPA advertising (including Google Adsense) is a waste of time and money. 5 years ago, you would have earned, say, $1000 per month from 3000-5000 visits per day, however, nowadays, you will barely get $50-$100 per month from that number...and if you are lucky!!!

Please discuss this and prove me wrong!