OK, so now I have both sets. I just got the set from 2003 or whatever and I've also had the one from 1986 or whatever. I A/B'd a few of the tracks and so far I think that both sets have their advantages and drawbacks. I'll have to devote more time to comparing. It is likely that I'll keep both, but honestly, if I had to unload one of them now, I'm not sure which I'd keep, based on the 4 tracks I compared. (Jack the Bear was one of them).