Unmounted Aero Ektars on their own have been going for about $500-600 recently. Throw in a working Speed Graphic in good condition and shipping and you close in on $800-900 quickly. And that may not include a lens board, ring to mount it, etc. Nor would it include rangefinder calibration which some people aren't up to handling themselves. I certainly understand people paying an added $100-200 for those items sorted out.