If you happen to be in Bangkok, Thailand and you want to spend a day checking out a truly overwhelming collection of Batman toys and ephemera, I have some very good news for you. The Batcat Museum, founded by collector Somchay Nitimongkolchai after he saw Batman Begins in 2005, is open for business with a massive (and strange) collection of Batman stuff for your perusal.
If you're not in Bangkok, then don't worry. CA reader Greg Heath was just there, and sent in a few pictures of his tour through the museum's considerable Batman collection. Having seen them, I think I can officially say it: I want to go to there.