If you ask me I think the M35 is the Stagea for grown ups.
C34's are still awesome cars for the money and have the performance potential to embarrass a Clubsport or FPV GT with the right mods (and believe me it's a wicked feeling smoking that goose next to you in the Executive with stock V6 motor and Clubsport kit). But they have the same traits as an R33 Skyline which makes them seem a bit 'boy racer'.
The M35 comes across as the car that you buy after you've owned a sports car - you still get the sports car power and handling (mods permitting) but you get that nicer leather interior instead of Recaro bucket seats, you get 5-6 airbags as opposed to 1 or 2. If you by the AR-X you will most certainly get a full Bose sound system complete with subwoofer in the boot and the real plus is it doesn't sit in the cargo area. Performance parts are fairly easy to get so if you do miss the 'boy racer' of the C34 you can still revisit that with aftermarket exhausts, coilovers, intakes, turbo kits and other assorted parts.
But at the end of the day we are all united by one simple code and that is we Stagea owners past and present are all wagon owners and are all joined with a bond and nature that no Skyline, Supra or any other Coupe owner will understand.