I read a guy's question in another section about the cost of a system with four heads and one valve, so I thought I would cause some reaction. lol In the area I am in for res. the going rate for a 6 zone system with 4 rotors to a zone and 6 sprays to a zone comes in around 2,400.00 plus indoor plumbing costs which average around 250.00. Rotors are priced at 110.00 per head and sprays at 85.00 per head installed. I believe closer to the city and in the city they are getting about a 500.00 to a 1000.00 more per system. I can walk on a property here and with five minutes or as long as it takes me to walk around the property without a pencil and paper get the price within 200.00 dollars of any company's. It's not brain surgery!!! There is always exception to the rule!! How does your area compare?