I am not a member but like to check out CAMRA recommended pubs when I am on holiday. If I was single I might join but with two young kids my week to week pub days are long over.
I do occasionally use a CAMRA recommended pub near me and love to taste the variety of stuff they have. Incidentally America has really embraced micro brewing and is making some fantastic stuff at the moment.
I think the microbrewery movement in the USA has probably been the most significant factor in beer production in recent years. Im not a big fan of some of the 'late hop addition' brew such as Brewdog, but they've certainly proved to be influential and have opened up the world of ales to a whole new audience which can only be a good thing....