Posted By:
BobBen,
From what I understand, and I could be missing something, I think it is much more obvious that the thief was someone who knows you or who knows someone who knows you. Certainly there are many people who know about your colection and where you live, or whom could find out easily enough about where you live and I would not discount that entirely. However, if I'm properly reading your posts 1) there was no sign of forced entry, 2) nothing else was taken or disturbed. This person sure seemed to know exactly where your cards were. They did not need to ransack the place to find them. They may also have a key to the apartment. Also remember that when you tell 3-4 friends, they are likely to tell 10-20. There are probably a good many local people who know about your cards. These same people probably know when you are or are not home.
Good Luck
Bob