Craig
Are you sure that your car hire includes State Environment Surcharge, Handling Fees, Supplementary Liability Insurance, Underinsured Motorists Protection, Airport Operating Fee and State Sales Tax. All this is included for £425.70 for an F4 car for 19 days through Virgin. Now we all know you don't HAVE to have this amount of protection but with America's compensation culture I don't think I would want to drive without this level of insurance especially if the accident was the fault of myself. You may well find that the State Environment Surcharge, Handling Fees, Airport Operating Fee and State Sales Tax are added to your invoice when you collect your car if it hasn't been pre-paid and these are charges that are unavoidable and for 14 days will cost about $140. Worth checking out what extras you are going to be charged for when you collect your car I think.
Paul is right with his different strokes for different folks comments - as long as you are happy with what you've got it makes no difference to anyone.
Best wishes
Lol