Every Luger enthusiast should have the opportunity to see a room full of Lugers, whether it be at Shattuck's or Simpson's or anyone else... Living as close as you do, I would recommend a visit to Shattuck's... call and make an appointment... but since the "bug" is still new... leave your checkbook at home.
You need to buy several historical references on Lugers... I recommend the books by Jan C. Still and then decide what type of Lugers you want to specialize in... otherwise you will end up in the poorhouse buying every Luger you ever come across
See what Ralph Shattuck has to offer, sleep on it, pray about it, and then call and tell him which one you are interested in...
Good luck, because there is NO cure for the 'bug'