Self-insurance offers you the ability to design your own plan, as well as

cash flow advantages

Self-insurance offers you the ability to design your own plan, as well as be insured for the items you want to pay for. When you have self-insurance, you are able to atailor it to your specific needs rather than putting yourself on a plan you won't maximize. Making sure you are fully covered for the items that you know you may need is important instead of paying to be insurance with plans that partically cover what you want and partially cover what someone else wants.