I think $150 to $200 depending on the condition, who is selling and who is buying... but personally, they are not Lugers, just a Luger look-a-like, and I have never known anyone who was glad they bought one including me. Mine has been gone for years... and I don't miss it.
Here is an example photo:
Most that I have known have been very ammunition picky... and not very accurate.
Just my -