Oh yes. I find that whenever I think about Romulans or Vulcans, I'm seeing them through Duane's interpretations. Which is good, because then they are both alien and consistent in a way that Star Trek itself really couldn't get to.

Of course, we also have to thank Leonard Nimoy and Mark Lenard, as well as many other actors who portrayed Vulcans or Romulans, for their amazing work in giving the characters the kind of coherence that Duane could work with.