Mikey, 3 Sons dogs and suds in wexford has beer tastings every Thursday night.
They are a six pack shop with hundreds of beers, and you can mix/match six packs.
Its a little more expensive, but worth it for the variety, and you don;t have to
worry about sinking $30 into a case that you don't like.
http://www.3sonsdogsandsuds.com/