Jasta2 -- Regular gun dealers don't carry many Lugers. It's an expansive gun and market is not as big as modern firearms or CAI imported cheap military surplus.
I noticed that you live in New Hampshire. If have energy, you may want to drive to New York's Tappan Zee Bridge, there is a C&R dealer carring many Lugers for sell. Not asking cheap, but .... who knows.... everyone need cash these days.
Here is the dealer's website. He has a storefront.
http://www.usgunexchange.com/home.cfm