I saw a really awesome older jazz bass in a local luthier's shop recently and have had it in my mind to try and go after one. What were the best/worst years? Any to stay away from or be drawn to particularly? I don't necessarliy want the most expensive, I just want something nice I can play out with. In my experience, instruments begin to really start sounding nice after 20-25 years, so I'm curious. Thoughts anyone?