Look at anything from the 60s and anything from the 00s and tell me that they would share a common aesthetic understanding of what 'primitive' in this case would be.
I'm not sure if I read what you are asking correctly, but the 60's >> 2000+ :
As development of Sleekness / Spiffiness:
Rotary Telephone > Cellphone / totally retro : Post and reciever by cable a la "Cracko"
Film camera > Digital camera Retro: Honking big film camera.
Tube Television > Plasma TV / totally retro : Radio *(sans pics) or just bigger console larger tube with less clarity.
Most any cars. / Totally retro : Model T
from the 70's dot matrix printers > Inkjet with all the bells and whistles. Obviosuly this has no retro component, perhaps typewriter and carbon papaer copies but it's not really accurate as it's a cross-tech.
Not so much passenger aircraft, since the design is more aerodynamics by shape, really. But totally retro : Biplane, again kind of a cross tech.
It's mostly better featuires, more options, lighter weight, or more compact, lighter materials, more endurance, speed, etc.
I'm not sure I really understand the qutoed question. Perhaps I missed what you are asking for here. If that's obvious, please clarify.
I am not saying nu-uh to Daedalus. I am suggesting NX does not fit in that line. to the Excelsior, Galaxy, etc.