In January of this year the National Lottery carried out a review of its terminal network. At that time approximately 2,000 lotto terminals and 1,500 "instant only" or scratch card terminals were installed. In conducting this review it examined the sales levels of each of its existing terminals and also took into account the changing retail environment since these terminals were first installed. As a result, the company decided to do a root and branch job of replacing the entire terminal base of 3,500 between now and Christmas to reflect the findings of the review. In doing so, it decided to use the opportunity to improve the service levels to the player base by changing the machine type provided in certain outlets.