I just stumble across a keyword which has very low competition and get no 1 position for that keyword in 2-3 days. The keyword gets daily clicks of more than 100 but when I looked at the traffic I hardy get 3-4 clicks each day. The tool I used was seobook to search that keyword. I guess the tool is very inaccurate. To clear things more I am not talking about conversions. I am talking about visitors so obvious visitors won't see quality of page unless he/she click it.