With the reduction of the Police force throughout the UK, the Police are more and more reluctant to attend NONE violent break ins at home addresses. Current attitudes suggest it is more likely they will just give a crime number over the phone for the purpose of insurance claims. This ultimately means there is unlikely to be an investigation and by reporting the incident to the Police you are just helping them with statistics and monitoring of crime activity in your area. Obviously should it be noticed there is a crime wave in an area, eg an increased number of reported break ins over a period of time, they will probably give the problem more attention.
This is where Security Cameras or CCTV (Closed Circuit Television) comes into effect to help fight crime. By having Security Cameras in place it is physical you can supply to the Police and your Insurance Company which will help get more attention to the crime committed.