Stephen, figure out what "era" of luger you want. And then possibly the type;
Era's
WW1 commerical or military
Weimar Era, commerical, military or police
Nazi era, commerical, military or police
That way you can buy a "shooter" and still be in your era. That said, most folks buy a shooter, buy books and learn about lugers. That is backwards to what any good collector should do, as you should buy books, study and then buy a gun. I bought one book, bought two lugers, then studied...

Ed