hi fellow light enthusiasts I was just wandering what a fair price in Australia would be for a used Roadster 250 watt hps with a scuffed visor.   

Hi Matt

Probably no more than $100. But in saying that, talking to your friendly linesman can be a very rewarding experience. You can get one fresh off the pole with not a mark on it for nothing. A wet Chux and a wipe over - like new. Where are you?