I will usually listen to a full offering by an artist(s) at least four times before I decide if I like it or not; at least by artist in genres I like. Even on artist I like I find I might not immediately like a new release upon first listen. I've spent time thinking about perception and things familiar are easier to like. That 'one cut' you like is often because you've heard it a few times. For myself I generally find if there's a cut I like I end up liking the whole thing.
It is however one of the selling points for me in going full digital. Streaming saves me the money and the storage of albums that truly end up being clunkers as well as being able to explore so much more.