Euro/designer/hobby game night at Fantasy Flight Games Event Center. We generally have 4-6 tables going (at least) and get a wide variety of games on the table.
Bring your own games, ask to borrow someone else's, or choose from a large collection of public games on their wall!
If you're new to hobby games, come check out the Game Center and the group, there's always someone happy to teach the rules.
Even if there are not a lot of people RSVP'd there is always 20-40 board gamers in attendance on Wednesday nights.