First Argonian I ran into says he doesn't talk to strangers. I'm a stranger too, alright, but still, I'm Argonian.
Second Argonian in Solitude wants me to engage in criminal activities.
Third Argonian (Solitude docks) treats me coldly too and tells me to go to my egg-friends or something. Hello? I'm Argonian.
Fourth Argonian I ran into is a drug addict.
Fifth Argonian is an ugly goat that I didn't even like having as a follower. Maybe I'll find a work around by putting a bag over his head if I decide to use followers again.
So aside of that single Khajiit, and Helgen scene in the beginning, there's nothing else that is scripted for Argonians. At least not so far. And it kinda breaks immersion.