I bought a "best of" a while back. Weather Report and his solo stuff, mostly. A great player, clearly, but I didn't care about what he was playing.
Today I heard Joni Mitchell's 'Don Juan's Reckless Daughter' for the first time - bought mostly because I hadn't heard much by Joni and knew Jaco played on it. Bloody hell. That's going to take some serious listening. His work on that makes all sorts of sense to me; maybe because my first instrument was cello.