I agree the 370 is a disappointment, but I look at the z32 as an anomoly in the Nissan history. Aesthetically - inside and out - it is WAY better than any other production Nissan ever(again my opinion) and I don't think another such car will come for some time.
I wouldn't spend any more time hoping for another Nissan to trump the z32 (I think the GTR is as close as they're gonna get) - Just enjoy your ride :p