Just like you insure your home, auto or life, it is a sensible business decision to insure your business property. Your furniture, fixture, equipment, stock and property should be insured against fire, flood and theft. The loss of any one of these could affect your ability to continue your business.
Additionally, you should protect yourself against any liability should someone suffer from bodily injury while on your premises.
Without insurance you subject yourself to loss of your assets should a disaster strike.