Qualify your traffic before they click. Let them know in your ad that there is a membership fee. Those that would never pay won't click your link. Those that are willing to pay for the service that they seek will click. Adwords is not about traffic. It's about conversion.
Good advice. I ran AdWords for a week now and saw all of the money go away with no conversions. I think I should have put in the ad that there is a membership fee so only people willing to pay would click. You learn on your mistakes. I may even try PPC with other companies and see how that goes after I revise my strategy and ads.