If you want to shoot your Luger when you get it I would advise getting one that is shooter quality. These usually will not have matching numbers among other imperfections. They will also be considerably less expensive. Shooters will start around 800 and go up from there. Matching ones will get you into the 1700 and up range. None of them are really cheap. If you have an all matching number Luger and break one of the numbered parts you will lower the collector value greatly. You will never get the cost of the gun back should you decide to sell. Collecting Lugers can be very addictive because they have such an interesting history and have so many variations. I would search the web and read up before buying. There are some great Luger sites out there. Good Luck.
Dave