What Fubar5 means is that the headsets are different. The 2002 is better than the one on the 2000, but this is such a small detail that it's not worth considering. The Tange-Seiki components are perfectly good. Something like this should not be much of a consideration in the purchase, and as the nut says, it's not the kind of thing you shold worry about untill you've put many thousands of miles and many years into it.