Just how important is it to be on the first page and in the first position at Google? In a word... very.
Advanced Web Ranking has released a study showing data on the click-through-rate from Google's organic search results. The data was taken from Google Webmaster Tools Search Queries reports from large accounts during July 2014.
On average, 71.33% of searches resulted in a page one Google organic click. Page two and three get only 5.59% of the clicks. On the first page alone, the first 5 results account for 67.60% of all the clicks and the results from 6 to 10 account for only 3.73%.