Traditional is fairly popular in my area. We have a trad stake but it is often shared by "youth". You can pay to shoot for fun or pay a bit more to shoot for "money".
I go to shoot (test myself) rather than fellowship (I know, it's a character flaw). I like to arrive early, move quickly, and get out. I'm usually leaving as the good folks with chairs and binoculars arrive.
I did go to a big Trad Fling last spring -Kentucky Klassic. I joined a group of fellows, about 6, 2 of which I knew. I'll admit, I had a good time shooting targets and the bull with these fellows. However, it took a lot LONGER than I'm used to spending on a 3-D trail.