Look it up for yourself. The main reason is the start up cost. This was done in our communuty in the 70's and 80's. The initial start up cost takes 6 years to recoup. We are well beyond that and are in the cost saving phase with this program. If it were eliminated we would go back to huge costs to replace cars run 24 hours a day 7 days a week. look under policefleet.com