I doubt that 3k is their minimum. It is probably what the particular client ended up paying for the installation that they wanted. I have a number of customers in the 500 - 1000 range as well as a number that are over 10k. It all depends on what they are looking for us to do. I have a completely seperate company with seperate insurance etc, to do the lighting so I dont know how much it would cost to just add this service to an existing insurance policy.