Now that I think about it, I used to have a nylon latigo (that I used on the off side of the saddle) that was very slippery and wouldn't stay tight unless I buckled it. So I buckled and tied it because that made me feel double-y safe. haha That buckle did come out once, I think due to the latigo being pulled up gently by the tie, but since it was tied, I didn't die.
At camp, where I'm in charge of 12 horses + tacking them up and then supervising them being ridden for 5-6 hours a day, 6 days a week, we've never had issues with tying either. This is a very interesting discussion to me. :)
Also, at camp I liked the dynamic-ness of tying. Most of the time we didn't have the correct cinch size for a given horse (we get different horses every year so there's no predictability with what we'll need) so it was nice to be able to tie wherever.
And I can safely say that the people who taught me to ride where definitely rednecks. However, I am anything but a redneck.
That's interesting that most people, so far, seem to tie, makes me feel less like the one weird kid in class!