The answer depends on many factors. Compare how much your car is worth versus the cost of collision coverage plus your deductible. You can get an estimate of how much your car is worth from the "blue book" or N.A.D.A. which can be found at book stores and libraries. If you have not transferred the collision risk to an insurance company by buying collision coverage, you are assuming the entire risk yourself. Sometimes the collision coverage may seem expensive, but it should be purchased if you could not afford to absorb the total loss of the value of the car. Remember collision coverage responds to damage to your car only. If it is the other party's fault their policy will pay for damages to your car and there is no deductible.