Reading scores are not the greatest in our upper elementary and primary grades and we have begun looking at AR as an incentive program. (Our lower grades are using basals and the upper grades- 4th and 5th - are using literature sets.) Our librarian, however, does not believe that it is very effective and that it simply costs too much. I am looking for the opinions of those that have used it for more than six years. Is it worth the time, expense, and trouble or do we need to come up with something else?