... that it retails for such a high price (here in the US, at least) of $109,000 via ADs. For that price you can find, with some effort, a third series 3970J (with solid and display backs) or even a second series 3970J (a bit more rare and supposedly more sought after by collectors). And much like the proportions of the 3940 versus the 5140 I am enamored of the proportions of the 3970 versus its later incarnations (the 5970).
Uh oh, I guess this means I'm on the hunt for a 3970... Oh man....