Most cats will need veterinary attention for illnesses or injuries at various points during their lives. Pet insurance can be a very effective way of dealing with the extra costs associated with unexpected treatments and give peace of mind that you will be able to afford them when such events do occur.
Although not available in all countries, pet insurance is well worth looking into. Usually for a relatively small monthly fee, an insurance policy can be bought which will cover you for substantial costs associated with illness or injury.
Choosing a lifetime policy will ensure that current problems will not become uninsurable pre-existing conditions, as they might with an annual insurance (which may seem cheaper in the short term).