I've been to both and can report a positive experience. The DPRK trip was fascinating. The thing I remember most about Iran is how friendly everyone was to us.
If you've been to South Korea (and I haven't, only have a bunch of friends who have), was there anything fascinating about North Korea that you couldn't have gotten from South Korea and that didn't hinge on how messed up North Korea is? Genuinely curious.
> was there anything fascinating about North Korea that you couldn't have gotten from South Korea
yes, a different perspective.
EDIT/ADD:
Witness one of the world’s most secretive states, firsthand experience of a communist regime, dynastic leadership, and a pervasive cult of personality.