Nice Tips .. While using High Paying keywords in your site very good earning you recd from Google adsense ... This is True . I am using the SAme and I got 2-3$ per day in my NICHE. learn more in My signature for more details ....
Like some said before, it's not about traffic it's all about the niche and the ad placement. You can get 0,03 cents per click or 2,5$ per click... you would need like 80x more traffic on the first site... Greetz Smetten