I still haven't bought a bass yet. I had my mind set on a 4 string bass just to start out, so I don't get in over my head. But I am seeing lots of 5 string basses, so this makes me think they are nothing special. Are they harder to play or learn how to play on? If I see a nice one in my price range, should I just get it? Any pros or cons to 4 vs. 5 strings?