Just submitted for my rebate and figured I would bump this thread in case new members here are not aware.
Beyond the rebate I highly recommend joining BCCA for some of their local and regional events. All kinds of fun things to do from AutoX to tours of the BMW vehicle distribution centers (we toured Oxnard last year - super cool).
And while you may find some salty characters from time to time here on the forums (as they hide behind their keyboards) I have always found the people that I've met through BCCA (from young to old) to be kind, gracious and generally fun to hang out with and talk cars. Don't be intimidated to attend an event because you are new - I promise you - you will be glad you did.