For me it is that they either drop like you cut the strings,melt, you get four feet in the air or they stand there numb and keel over on their side. Pretty dramatic. I can see the appeal.

That being said, I don't shoot for them unless that is the only presentation. I do bust shoulders if I need to keep them from going where they are headed. Behind the shoulder and 1/3 of the way up is my favorite.