I scored mine for $75. It was missing a caster and had surface rust, but was otherwise in good condition. It came with all racks/hangers/shelves, too. I think I got mine for a pretty good deal, though. I have seen a couple more show up on CL, lately, and they were in the $150-200 range. Seems to be the going rate.
I had a blast restoring/modding mine. Good luck in your search.
22.5" Weber Kettle / 32" Master Forge Charcoal Grill / Modded/Restored NB Bandera